1987 Castilian-Leonese regional election

Election in the Spanish region of Castile and León 1987 Castilian-Leonese regional election Castile and León parliamentary no 1983 Castilian-Leonese regional election 1983 1991 Castilian-Leonese regional election 1991 All 84 seats in the Cortes of Castile and León 43 #Opinion polls 1,997,693 10px 0.2% 1,461,386 (73.2%)10px 3.4 pp 10 June 1987 170x170px José María Aznar People's Alliance (Spain) 22 June 1985 Valladolid 39 seats (CP)"AP–PDP–UL" Within the AP–PDP–UL alliance in the 1983 election: AP (31 seats), PDP (6 seats), UL/PL (1 seat) and PANCAL (1 seat).12 April 1983 Candidaturas proclamadas para Cortes de Castilla y León convocadas por Decreto 1/83 de 5 de marzo, del Pleno del Consejo General de Castilla y León, estructurado conforme a lo dispuesto en la Disposición Transitoria 1ª. de la Ley Orgánica 4/83 de 25 de Febrero, de convocatoria de elecciones a Cortes de Castilla y León https://www.juntaelectoralcentral.es/cs/jec/documentos/CASTILLA_Y_LEON_1983_Candidaturas.pdf es Official Gazette of Castile and León 10 (Extraordinary) 1989-8959 1–20 21 February 202612 May 1987 Candidaturas proclamadas a Cortes de Castilla y León, convocadas por Decreto 74/1987 de 13 de abril https://www.juntaelectoralcentral.es/cs/jec/documentos/CASTILLA_Y_LEON_1987_Candidaturas.pdf es Official Gazette of Castile and León 65 1989-8959 1–38 21 February 2026 32 10px 1 493,488 34.4% n/a 170x170px Juan José Laborda Socialist Party of Castile and León 3 March 1987 Burgos 42 seats, 44.4% 32 10px 10 488,469 34.0% 10px 10.4 pp 170x170px Carlos Sánchez-Reyes Democratic and Social Centre (Spain) 1987 Valladolid 2 seats, 6.0% 18 10px 16 278,253 19.4% 10px 13.4 pp 170x170px Rafael de las Heras People's Democratic Party (Spain) 1986 Segovia 6 seats (CP)"AP–PDP–UL" 1 10px 5 35,080 2.4% n/a 170x170px Tomás Cortés Independent Solution (Burgos) 1987 Burgos Did not contest 1 10px 1 19,282 1.3% New party CastileLeónProvinceMapCortes1987.png 325px Constituency results map for the Cortes of Castile and León President President after election José Constantino Nalda Socialist Party of Castile and León José María Aznar People's Alliance (Spain) A regional election was held in Castile and León on 10 June 1987 to elect the 2nd es Cortes no of the autonomous community. All 84 seats in the es Cortes no were up for election. It was held concurrently with regional elections in twelve other autonomous communities and local elections all across Spain, as well as the 1987 European Parliament election. Expectations for the ruling Spanish Socialist Workers' Party (PSOE) were low after the resignation in October 1986 of former president Demetrio Madrid, besieged by a judicial investigation on the alleged fraudulent sale of a former textile company of his property and by internal opposition from within his party.31 October 1986 La crisis por la dimisión de Demetrio Madrid debe resolverse en 15 días https://elpais.com/diario/1986/10/31/espana/531097214_850215.html El País 12 December 20193 November 1986 La dimisión de Demetrio Madrid favorece las expectativas electorales del centro y la derecha https://elpais.com/diario/1986/11/03/espana/531356412_850215.html El País 12 December 2019 The election saw both the PSOE and the opposition People's Alliance (AP)—which ran on its own after the break up of the People's Coalition with the People's Democratic Party (PDP) and the Liberal Party (PL) the previous year—lose ground to the Democratic and Social Centre (CDS) which, with 18 seats and 19.4% of the share, scored the best result for a third party in a Castilian-Leonese regional election to date. The PDP was able to win one seat by Segovia, with Castile and León becoming one of the only two autonomous communities—the other being Navarre—in which the party was able to secure parliamentary representation. In Burgos, a breakway party, Independent Solution (SI), formed by the incumbent mayor of its capital city, José María Peña San Martín, obtained one seat in the regional es Cortes no. As a result of the election, the support of PDP and SI procurators and the decisive abstention of the CDS, AP candidate José María Aznar was able to become President of the Regional Government of Castile and León, replacing Socialist José Constantino Nalda and starting an uninterrupted stay of over three decades in power for AP and its successor, the People's Party (PP). Aznar's presidency would last until 1989, when he would resign to Jesús Posada in order to become the PP's national leader and, in 1996, prime minister of Spain. Overview Under the 1983 Statute of Autonomy, the Cortes of Castile and León was the unicameral legislature of the homonymous autonomous community, having legislative power in devolved matters, as well as the ability to grant or withdraw confidence from a regional president.Statute 1983 arts. 9 & 13–14. The electoral and procedural rules were supplemented by national law provisions.LECyL 1987 final prov. 1. Date The term of the es Cortes no of Castile and León expired four years after the date of its previous ordinary election. The election decree was required to be issued no later than 25 days before the scheduled expiration date of parliament and published on the following day in the Official Gazette of Castile and León (BOCYL), with election day taking place between 54 and 60 days after the decree's publication.Statute 1983 art. 11; LECyL 1987 arts. 16–17 (suppl. supplemented by LOREG 1985 art. 42). The previous election was held on 8 May 1983, which meant that the chamber's term would have expired on 8 May 1987. The election decree was required to be published in the BOCYL no later than 14 April 1987, setting the latest possible date for election day on 13 June 1987. The es Cortes no of Castile and León could not be dissolved before the expiration date of parliament, except in the event of an investiture process failing to elect a regional president within a two-month period from the first ballot. In such a case—provided this did not happen during the last year of parliament before its planned expiration—the es Cortes no were to be automatically dissolved and a snap election called, with elected lawmakers serving the remainder of its original four-year term.Statute 1983 art. 15. The election to the es Cortes no of Castile and León was officially called on 14 April 1987 with the publication of the corresponding decree in the BOCYL, setting election day for 10 June and scheduling for the chamber to reconvene on 2 July.Decree 74/1987 1987 arts. 1 & 4. Electoral system Voting for the es Cortes no was based on universal suffrage, comprising all Spanish nationals over 18 years of age, registered in Castile and León and with full political rights, provided that they had not been deprived of the right to vote by a final sentence, nor were legally incapacitated.Statute 1983 art. 10; LECyL 1987 art. 2 (suppl. supplemented by LOREG 1985 arts. 2–3). The es Cortes no of Castile and León had three seats per each multi-member constituency—corresponding to the provinces of Ávila, Burgos, León, Palencia, Salamanca, Segovia, Soria, Valladolid and Zamora—plus one additional seat per 45,000 inhabitants or fraction above 22,500. All were elected using the D'Hondt method and closed-list proportional voting, with a three percent-threshold of valid votes (including blank ballots) in each constituency.Statute 1983 art. 10; LECyL 1987 arts. 18–20. The use of this electoral method resulted in a higher effective threshold depending on district magnitude and vote distribution.Gallagher Michael 30 July 2012 http://www.tcd.ie/Political_Science/staff/michael_gallagher/ElSystems/Docts/effthresh.php Effective threshold in electoral systems Trinity College Dublin Dublin https://web.archive.org/web/20170730092518/http://www.tcd.ie/Political_Science/staff/michael_gallagher/ElSystems/Docts/effthresh.php 22 July 2017 30 July 2017 As a result of the aforementioned allocation, each es Cortes no constituency was entitled the following seats:Decree 74/1987 1987 art. 2. Seats Constituencies 15 León 14 Valladolid 11 Burgos, Salamanca 8 Zamora 7 Ávila, Palencia 6 Segovia 5 Soria The law did not provide for by-elections to fill vacant seats; instead, any vacancies arising after the proclamation of candidates and during the legislative term were filled by the next candidates on the party lists or, when required, by designated substitutes.LECyL 1987 arts. 21 & 26 (suppl. supplemented by LOREG 1985 arts. 46 & 48). Outgoing parliament The table below shows the composition of the parliamentary groups in the chamber at the time of the election call.Lozano Carles https://www.historiaelectoral.com/acleon.html Elecciones a Cortes de Castilla y León (desde 1983) es Historia Electoral.com 18 October 2025https://www.ccyl.es/Organizacion/VistaGeneralLegislatura?Legislatura=1 El Parlamento. Legislaturas anteriores. I Legislatura es Cortes of Castile and León 30 January 2022 + Parliamentary composition in April 1987 Groups Parties Legislators Seats Total Socialist Parliamentary Group PSOE 41 41 People's Parliamentary Group AP 31 36 PDP 520 July 1986 Situación precaria del PDP en Castilla y León https://hemeroteca.abc.es/nav/Navigate.exe/hemeroteca/madrid/abc/1986/07/20/022.html es ABC 30 January 2020 Mixed Parliamentary Group CDS 1 7 PANCAL 1Francisco José Alonso.2 June 1984 Pase al Grupo Mixto. https://elpais.com/diario/1984/06/02/espana/454975220_850215.html es El País 30 January 2022 INDEP 5Manuel Cabezas, former PSOE legislator; Antonio Martín Beaumont and Fernando Gil Nieto, former AP legislators; José Manuel Hernández, former CDS legislator; Francisco Montoya, former PDL/PRD legislator. Parties and candidates The electoral law allowed for parties and federations registered in the interior ministry, alliances and groupings of electors to present lists of candidates. Parties and federations intending to form an alliance were required to inform the relevant electoral commission within 10 days of the election call, whereas groupings of electors needed to secure the signature of at least one percent of the electorate in the constituencies for which they sought election, disallowing electors from signing for more than one list.LECyL 1987 arts. 25–26 (suppl. supplemented by LOREG 1985 art. 44). Below is a list of the main parties and alliances which contested the election: Candidacy Parties andalliances Leading candidate Ideology Previous result Gov. Government Ref. References Vote % Seats PSOE List on Spanish Socialist Workers' Party (PSOE) 50px Juan José Laborda Social democracy 44.4% 42 Jáuregui Fernando 11 March 1985 https://elpais.com/diario/1985/03/11/espana/479343615_850215.html El burgalés Juan José Laborda, nuevo secretario general del PSOE de Castilla y León es El País Madrid 4 March 2026Rodríguez Gonzalo 30 October 1986 https://elpais.com/diario/1986/10/30/espana/531010830_850215.html El presidente de Castilla y León dimite tras su procesamiento es El País Valladolid 27 January 2026De Dios Luis Miguel 4 March 1987 https://elpais.com/diario/1987/03/04/espana/541810816_850215.html Juan José Laborda, portavoz socialista en el Senado, será el candidato del PSOE a la presidencia de la Junta de Castilla y León es El País 4 March 2026 AP List on People's Alliance (AP) 50px José María Aznar ConservatismNational conservatism 39.7%"AP–PDP–UL" 39 Díez Anabel 23 June 1985 https://elpais.com/diario/1985/06/23/espana/488325611_850215.html Alianza Popular de Castilla y León cree que aún se puede cambiar el mapa autonómico es El País Palencia 4 March 2026Jáuregui Fernando 14 November 1986 https://elpais.com/diario/1986/11/14/espana/532306825_850215.html Manuel Fraga abre en Castilla y León un nuevo 'frente electoral' es El País Madrid 4 March 2026Jáuregui Fernando 16 November 1986 https://elpais.com/diario/1986/11/16/espana/532479610_850215.html Fraga afirma que AP no tiene previsto celebrar en breve un nuevo congreso es El País Burgos 4 March 2026 PDP List on People's Democratic Party (PDP) 50px Rafael de las Heras Christian democracy 14 September 1986 El PDP irá en solitario https://elpais.com/diario/1986/09/14/espana/527032808_850215.html es El País 10 March 202628 January 1987 Alzaga descarta cualquier coalición del PDP con Alianza Popular https://elpais.com/diario/1987/01/28/espana/538786813_850215.html es El País Valencia 28 November 2025 CDS List on Democratic and Social Centre (CDS) 50px Carlos Sánchez-Reyes CentrismLiberalism 6.0% 2 De Dios Luis Miguel 28 May 1987 https://elpais.com/diario/1987/05/28/espana/549151223_850215.html Tres presidentes socialistas en nueve meses, si vence el PSOE es El País Valladolid 4 March 2026Prieto Joaquín Gómez Carlos 30 May 1987 https://elpais.com/diario/1987/05/30/espana/549324036_850215.html Conflictos regionales y cambios de listas en el centro-derecha es El País Madrid 4 March 2026 IU List on Communist Party of Castile and León (PCCyL) Socialist Action Party (PASOC) Communist Party of the Peoples of Spain (PCPE) Progressive Federation (FP) Republican Left (IR) 50px Antonio Herreros SocialismCommunism 3.2%Results for PCCL–PCE in the 1983 election. 0 SI List on Independent Solution (SI) 50px Tomás Cortés ConservatismLocalism colspan="2" Did not contest Opinion polls The tables below list opinion polling results in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" column on the right shows the percentage-point difference between the parties with the highest percentages in a poll. Voting intention estimates The table below lists weighted voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font; 43 seats were required for an absolute majority in the Cortes of Castile and León. Polling firm/Commissioner Fieldwork date Sample size Turnout 17px|link=Socialist Party of Castile and León|PSOE 35px|link=People's Coalition (Spain)|AP–PDP–PL 27px|link=Democratic and Social Centre (Spain)|CDS 35px|link=United Left of Castile and León|IU 28px|link=Liberal Democratic Party (Spain, 1982)|PDL 30px|link=People's Alliance (Spain)|AP 27px|link=People's Democratic Party (Spain)|PDP 25px|link=Independent Solution (Burgos)|SI Lead 1987 regional election 10 Jun 1987 73.2 34.075% Verdana 32 – 19.475% Verdana 18 3.875% Verdana 0 – 34.475% Verdana 32 2.475% Verdana 1 1.375% Verdana 1 0.4 Government of Castile and LeónCandidatos y encuestas https://hemeroteca.abc.es/nav/Navigate.exe/hemeroteca/madrid/abc/1987/05/27/029.html es ABC 27 May 1987 27 May 1987???75% Verdana 34/36 –?75% Verdana 19/20 – –?75% Verdana 29/30?75% Verdana 1/2 –? Demoscopia/El PaísGana el que menos votos pierde https://recursos.march.es/linz/I34490.pdf es El País 4 June 1987 22–26 May 1987? 60 29.475% Verdana 28/31 – 21.375% Verdana 18/20 5.375% Verdana 1 – 36.875% Verdana 33/35 2.075% Verdana 1 – 7.4 1986 general election 22 Jun 1986 72.8 38.875% Verdana (36) 35.875% Verdana (34) 17.575% Verdana (14) 2.575% Verdana (0) 1.3"PRD" Results for PRD.75% Verdana (0) "CP" Within CP. "CP" – 3.0 EdisPresupuestos: La tentación electoralista http://prensahistorica.mcu.es/es/catalogo_imagenes/grupo.cmd?path=5090608&posicion=2&presentacion=pagina es La Prensa Alcarreña 28 July 1985 28 Jul 1985?? 49.7 30.7 9.0 <5.0 – "CP" "CP" – 19.0 1983 regional election 8 May 1983 69.8 44.475% Verdana 42 39.775% Verdana 39 6.075% Verdana 2 3.2"PCE" Results for PCE.75% Verdana 0 2.775% Verdana 1 "CP" "CP" – 4.7 Voting preferences The table below lists raw, unweighted voting preferences. Polling firm/Commissioner Fieldwork date Sample size 17px|link=Socialist Party of Castile and León|PSOE 35px|link=People's Coalition (Spain)|AP–PDP–PL 27px|link=Democratic and Social Centre (Spain)|CDS 35px|link=United Left of Castile and León|IU 28px|link=Liberal Democratic Party (Spain, 1982)|PDL 30px|link=People's Alliance (Spain)|AP 27px|link=People's Democratic Party (Spain)|PDP 25px|link=Independent Solution (Burgos)|SI Lead 1987 regional election"CERA" Does not include non-resident citizens. 10 Jun 1987 24.5 – 13.9 2.7 – 24.7 1.8 1.0 31.9 0.2 CISPreelectoral municipales y autonómicas de Castilla y León 1987 (IV) (Estudio nº 1662. Junio 1987) https://www.cis.es/documents/d/cis/es1662marpdf es CIS 5 June 1987 2–5 Jun 1987 4,603 22.4 – 12.6 2.3 – 18.9 0.7 – 36.6 4.9 3.5 CISPreelectoral municipales y autonómicas de Castilla y León 1987 (III) (Estudio nº 1642. Mayo 1987) https://www.cis.es/documents/d/cis/es1642marpdf es CIS 16 May 1987 9–16 May 1987 6,566 22.7 – 11.6 1.7 0.1 16.7 0.6 – 39.5 5.5 6.0 CISPreelectoral municipales y autonómicas de Castilla y León 1987 (II) (Estudio nº 1622. Abril 1987) https://www.cis.es/documents/d/cis/es1622marpdf es CIS 23 April 1987 14–23 Apr 1987 6,566 23.3 – 10.8 1.7 0.1 14.1 0.7 – 42.7 5.3 9.2 CISPreelectoral municipales y autonómicas de Castilla y León 1987 (I) (Estudio nº 1605. Marzo 1987) https://www.cis.es/documents/d/cis/es1605mar_spdf es CIS 22 March 1987 12–22 Mar 1987 5,652 25.0 – 11.0 2.0 0.0 13.0 0.0 – 41.0 6.0 12.0 CISBarómetro de la comunidad autónoma de Castilla y León (II) (Estudio nº 1568. Febrero-Marzo 1986) https://www.cis.es/es/estudios/barometro-de-la-comunidad-autonoma-de-castilla-y-leon-ii- es CIS 1 December 1986 1 Dec 1986 4,496 29.8 – 10.1 1.7 0.2 13.2 0.5 – 36.1 6.5 16.6 1986 general election"CERA" 22 Jun 1986 27.9 25.8 12.6 1.8 1.0"PRD" "CP" "CP" – 26.6 2.1 CISBarómetro de la comunidad autónoma de Castilla y León (I) (Estudio nº 1507. Febrero-Marzo 1986) https://www.cis.es/documents/d/cis/es1507mar_s es CIS 1 March 1986Estudio CIS nº 1505. Ficha técnica https://www.cis.es/documents/d/cis/ft1507s es CIS 1 March 1986 1 Feb–1 Mar 1986 2,501 26.5 13.3 3.1 1.4 0.4 "CP" "CP" – 42.6 10.9 13.2 1983 regional election 8 May 1983 30.5 27.3 4.1 2.2"PCE" 1.9 "CP" "CP" – 30.2 3.2 Victory preferences The table below lists opinion polling on the victory preferences for each party in the event of a regional election taking place. Polling firm/Commissioner Fieldwork date Sample size 17px|link=Socialist Party of Castile and León|PSOE 27px|link=Democratic and Social Centre (Spain)|CDS 35px|link=United Left of Castile and León|IU 28px|link=Liberal Democratic Party (Spain, 1982)|PDL 30px|link=People's Alliance (Spain)|AP 27px|link=People's Democratic Party (Spain)|PDP Other/None Lead CIS 2–5 Jun 1987 4,603 27.8 16.8 2.7 – 23.8 0.8 2.1 26.0 4.0 CIS 9–16 May 1987 6,566 29.5 14.8 2.0 0.1 21.0 0.5 0.9 31.2 8.5 CIS 14–23 Apr 1987 6,566 29.2 14.7 2.0 0.1 18.0 0.7 1.2 33.8 11.2 CIS 12–22 Mar 1987 5,652 29.0 14.0 2.0 0.0 17.0 1.0 1.0 36.0 12.0 CIS 1 Dec 1986 4,496 35.8 13.3 2.0 0.2 16.4 0.6 1.7 30.0 19.4 Victory likelihood The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a regional election taking place. Polling firm/Commissioner Fieldwork date Sample size 17px|link=Socialist Party of Castile and León|PSOE 27px|link=Democratic and Social Centre (Spain)|CDS 35px|link=United Left of Castile and León|IU 28px|link=Liberal Democratic Party (Spain, 1982)|PDL 30px|link=People's Alliance (Spain)|AP 27px|link=People's Democratic Party (Spain)|PDP Other/None Lead CIS 2–5 Jun 1987 4,603 42.4 6.0 0.3 – 12.1 0.2 0.2 38.8 30.3 CIS 9–16 May 1987 6,566 40.5 6.3 0.1 0.0 9.9 0.2 0.2 42.7 30.6 CIS 14–23 Apr 1987 6,566 40.5 6.0 0.1 0.0 7.7 0.3 0.3 45.1 32.8 CIS 12–22 Mar 1987 5,652 41.0 5.0 0.0 0.0 7.0 0.0 0.0 47.0 34.0 CIS 1 Dec 1986 4,496 54.8 3.0 0.1 0.0 5.5 0.1 0.1 36.3 49.3 Preferred President The table below lists opinion polling on leader preferences to become president of the Regional Government of Castile and León. Polling firm/Commissioner Fieldwork date Sample size 55px 55px 55px 55px 55px 55px 55px 55px 55px Other/None/Notcare Lead NaldaPSOE LabordaPSOE AznarAP CalvoCDS FernandoCDS S.-ReyesCDS HerrerosIU M. VillaPDP HerasPDP CIS 2–5 Jun 1987 4,603 – 19.7 18.0 – – 3.9 1.8 – 1.9 11.0 43.7 1.7 CIS 9–16 May 1987 6,566 – 10.1 9.0 – – 0.7 1.1 – 2.2 16.5 60.4 1.1 CIS 14–23 Apr 1987 6,566 10.2 4.4 6.1 1.3 1.3 – – 8.3 – 16.7 51.9 1.9 Results Overall + ← Summary of the 10 June 1987 Cortes of Castile and León election results → center|335px Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Alliance (AP)1 493,488 34.36 n/a 32 +1 Spanish Socialist Workers' Party (PSOE) 488,469 34.01 −10.36 32 −10 Democratic and Social Centre (CDS) 278,253 19.37 +13.41 18 +16 United Left (IU)2 54,676 3.81 +0.58 0 ±0 People's Democratic Party (PDP)1 35,080 2.44 n/a 1 −5 Independent Solution (SI) 19,282 1.34 New 1 +1 Workers' Party of Spain–Communist Unity (PTE–UC) 11,943 0.83 New 0 ±0 Leonesist Union (UNLE) 8,960 0.62 New 0 ±0 Party of El Bierzo (PB) 5,387 0.38 +0.07 0 ±0 Nationalist Party of Castile and León (PNCL–PANCAL)1 5,190 0.36 n/a 0 −1 Regionalist Party of the Leonese Country (PREPAL) 4,090 0.28 −2.23 0 ±0 Humanist Platform (PH) 3,934 0.27 New 0 ±0 Liberal Party (PL)1 2,213 0.15 n/a 0 −1 Spanish Phalanx of the CNSO (FE–JONS) 1,828 0.13 New 0 ±0 Spanish Ruralist Party (PRE) 749 0.05 New 0 ±0 Liberal Democratic Party (PDL) n/a n/a −2.72 0 −1 Blank ballots 22,690 1.58 +0.62 Total 1,436,232 84 ±0 Valid votes 1,436,232 98.28 −0.23 Invalid votes 25,154 1.72 +0.23 Votes cast / turnout 1,461,386 73.15 +3.31 Abstentions 536,307 26.85 −3.31 Registered voters 1,997,693 Sourceshttps://servicios.jcyl.es/prea/home.html Procesos electorales a las Cortes de Castilla y León es Regional Government of Castile and León 19 October 202512 August 1987 Resultados generales y por circunscripciones de las elecciones a las Cortes de Castilla y León celebradas el 10 de junio de 1987 https://www.juntaelectoralcentral.es/cs/jec/documentos/CASTILLA_Y_LEON_1987_Resultados.pdf es Official Gazette of Castile and León 129 1989-8959 2418–2421 25 January 2026https://www.tcu.es/export/sites/portal/repositorio2/INFORME/1988/75_1988_I.pdf Nº 75. Informe de fiscalización de la regularidad de las contabilidades electorales derivadas de las elecciones celebradas el 10 de junio de 1987 es Court of Auditors 25 January 2026 left Footnotes: 1 Within the People's Coalition alliance in the 1983 election. 2 United Left results are compared to Communist Party of Spain totals in the 1983 election. Popular vote #ddd 550px 500px AP People's Alliance (Spain) 34.36 PSOE Socialist Party of Castile and León 34.01 CDS Democratic and Social Centre (Spain) 19.37 IU United Left of Castile and León 3.81 PDP People's Democratic Party (Spain) 2.44 SI Independent Solution (Burgos) 1.34 Others #777777 3.08 Blank ballots #DDDDDD 1.58 Seats #ddd 550px 500px AP People's Alliance (Spain) 38.10 PSOE Socialist Party of Castile and León 38.10 CDS Democratic and Social Centre (Spain) 21.43 PDP People's Democratic Party (Spain) 1.19 SI Independent Solution (Burgos) 1.19 Distribution by constituency Constituency AP PSOE CDS PDP SI % S % S % S % S % S Ávila 30.3 2 23.5 2 40.6 3 1.9 − Burgos 30.3 4 34.4 4 17.1 2 1.7 − 10.0 1 León 33.8 6 38.2 7 13.7 2 1.7 − Palencia 45.0 4 33.4 2 13.7 1 Salamanca 35.2 4 35.0 4 21.7 3 0.9 − Segovia 22.4 1 26.8 2 22.6 2 17.7 1 Soria 41.7 2 32.3 2 14.3 1 5.5 − Valladolid 32.7 5 36.4 6 20.3 3 0.9 − Zamora 43.0 4 32.5 3 16.7 1 2.0 − Total 34.4 32 34.0 32 19.4 18 2.4 1 1.3 1 Sources Aftermath Government formation InvestitureNomination of José María Aznar (AP) Ballot → 21 July 1987 21 July 1987 Required majority → 43 out of 84 15 Simple 15 Yes • AP (32) • PDP (1) • SI (1) 34 84 green 125px 34 84 green 125px No • PSOE (32) 32 84 red 125px 32 84 red 125px Abstentions • CDS (18) 18 84 gray 125px 18 84 gray 125px Absentees 0 84 black 125px 0 84 black 125px Sources 1989 investiture InvestitureNomination of Jesús Posada (PP) Ballot → 15 September 1989 Required majority → 43 out of 84 15 Yes • PP (31) • CDS (18) • INDEP (2) 51 84 green 125px No • PSOE (29) • INDEP (1) 30 84 red 125px Abstentions 0 84 gray 125px Absentees • PSOE (2) • CDS (1) 3 84 black 125px SourcesForjas Francisco De Dios Luis Miguel 15 September 1989 https://elpais.com/diario/1989/09/15/espana/621813621_850215.html Jesús Posada será elegido hoy presidente de Castilla y León es El País Valladolid 25 January 2026Forjas Francisco 16 September 1989 https://elpais.com/diario/1989/09/16/espana/621900010_850215.html Posada fue elegido presidente de Castilla y León con los votos del CDS y los populares es El País Valladolid 25 January 2026 Notes References Opinion poll sources "p" Other Bibliography y Ley Orgánica 4/1983, de 25 de febrero, de Estatuto de Autonomía de Castilla-León Organic Law 4/1983 25 February 1983 Official State Gazette BOE-A-1983-6483 es https://www.boe.es/buscar/act.php?id=BOE-A-1983-6483 18 January 2026 Statute 1983 y Ley Orgánica 5/1985, de 19 de junio, del Régimen Electoral General Organic Law 5/1985 19 June 1985 version as of 3 April 1987 Official State Gazette BOE-A-1985-11672 es https://www.boe.es/buscar/act.php?id=BOE-A-1985-11672&tn=1&p=19870403 5 October 2025 LOREG 1985 y Ley 3/1987, de 30 de marzo, Electoral de Castilla y León Law 3/1987 30 March 1987 version as of 1 April 1987 Official State Gazette BOE-A-1987-9475 es https://www.boe.es/buscar/act.php?id=BOE-A-1987-9475&tn=1&p=19870401 5 October 2025 LECyL 1987 y Decreto 74/1987, de 13 de abril, por el que se convocan elecciones a las Cortes de Castilla y León Decree 74/1987 13 April 1987 Official Gazette of Castile and León BOCYL-D-14041987-1 es https://bocyl.jcyl.es/boletines/1987/04/14/pdf/BOCYL-D-14041987-1.pdf 25 January 2026 Decree 74/1987 1987 Regional election Castile and León Category:Regional elections in Castile and León Castile and León