The Cortes of Aragon were the devolved, unicameral legislature of the autonomous community of Aragon, having legislative power in regional matters as defined by the Spanish Constitution and the Aragonese Statute of Autonomy, as well as the ability to vote confidence in or withdraw it from a regional president. Voting for the Cortes was on the basis of universal suffrage, which comprised all nationals over eighteen, registered in Aragon and in full enjoyment of their political rights. Additionally, Aragonese people abroad were required to apply for voting before being permitted to vote, a system known as "begged" or expat vote. Voting for the Cortes was on the basis of universal suffrage, which comprised all nationals over eighteen, registered in Aragon and in full enjoyment of their political rights. Additionally, Aragonese people abroad were required to apply for voting before being permitted to vote, a system known as "begged" or expat vote. The 67 members of the Cortes of Aragon were elected using the D'Hondt method and a closed list proportional representation, with a threshold of three percent of valid votes—which included blank ballots—being applied in each constituency. Parties not reaching the threshold were not taken into consideration for seat distribution. Seats were allocated to 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. The use of the D'Hondt method might result in a higher effective threshold, depending on the district magnitude.
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, with election day taking place on the fifty-fourth day from publication. 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 no later than 28 April 2015, with the election taking place on the fifty-fourth day from publication, setting the latest possible election date for the Cortes 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. 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.
Parliamentary status
The Cortes of Aragon were officially dissolved on 31 March 2015, after the publication of the dissolution decree in the Official Gazette of Aragon. The table below shows the status of the different parliamentary groups in the Cortes at the time of dissolution.
Parties and candidates
The electoral law allowed for parties and federations registered in the interior ministry, coalitions and groupings of electors to present lists of candidates. Parties and federations intending to form a coalition 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. Below is a list of the main parties and electoral alliances which contested the election:
Opinion polls
The table below lists voting intention estimates 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 given poll. When available, seat projections are also displayed below the voting estimates in a smaller font. 34 seats were required for an absolute majority in the Cortes of Aragon.
