Voting for the Cortes was on the basis of universal suffrage, which comprised all nationals over 18 years of age, registered in Aragon and in full enjoyment of their political rights, provided that they were not sentenced—by a final court ruling—to deprivation of the right to vote.[2][3][4] Additionally, Spaniards abroad were required to apply for voting before being permitted to vote, a system known as "begged" or expat vote (Spanish: Voto rogado).[5][6]
The Cortes of Aragon were entitled to a minimum of 65 and a maximum of 80 seats, with the electoral law setting its size at 67. All members were elected in three multi-member constituencies—corresponding to the provinces of Huesca, Teruel and Zaragoza, with each being allocated an initial minimum of 13 seats and the remaining 28 being distributed in proportion to their populations (provided that the seat-to-population ratio in the most populated province did not exceed 2.75 times that of the least populated one)—using the D'Hondt method and a closed listproportional voting system, with an electoral threshold of three percent of valid votes (which included blank ballots) being applied in each constituency.[7][8] The use of the electoral method resulted in an effective threshold based on the district magnitude and the distribution of votes among candidacies.[9]
As a result of the aforementioned allocation, each Cortes constituency was entitled the following seats:[10]
The law did not provide for by-elections to fill vacated seats; instead, any vacancies that occurred after the proclamation of candidates and into the legislative term were to be covered by the successive candidates in the list and, when required, by the designated substitutes.[11][12]
Election date
The term of the Cortes of Aragon expired four years after the date of their previous election, unless they were dissolved earlier. The election decree was required to be issued no later than the twenty-fifth day prior to the date of expiry of parliament and published on the following day in the Official Gazette of Aragon (BOA), with election day taking place on the fifty-fourth day from publication.[2][13][14] The previous election was held on 22 May 2011, which meant that the legislature's term would have expired on 22 May 2015. The election decree was required to be published in the BOA no later than 28 April 2015, with the election taking place on the fifty-fourth day from publication, setting the latest possible date for election day on Sunday, 21 June 2015.
The president had the prerogative to dissolve the Cortes of Aragon and call a snap election, provided that no motion of no confidence was in process and that dissolution did not occur before one year had elapsed since the previous one.[13][15] In the event of an investiture process failing to elect a regional president within a two-month period from the first ballot, the Cortes were to be automatically dissolved and a fresh election called.[16]
The Cortes of Aragon were officially dissolved on 31 March 2015 with the publication of the dissolution decree in the BOA, setting election day for 24 May and scheduling for the chamber to reconvene on 18 June.[10]
Outgoing parliament
The table below shows the composition of the parliamentary groups in the chamber at the time of dissolution.[17]
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 ahead of an election were required to inform the relevant electoral commission within ten 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 of candidates.[18][19] Additionally, a balanced composition of men and women was required in the electoral lists, so that candidates of either sex made up at least 40 percent of the total composition.[20]
Below is a list of the main parties and electoral alliances which contested the election:
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; 34 seats were required for an absolute majority in the Cortes of Aragon.
Color key:
Poll conducted after legal ban on opinion pollsExit poll
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