1920 Spanish general election

A general election was held in Spain on Sunday, 19 December 1920 (for the Congress of Deputies) and on Sunday, 2 January 1921 (for the Senate), to elect the members of the 19th Cortes under the Spanish Constitution of 1876, during the Restoration period. All 409 seats in the Congress of Deputies were up for election, as well as 180 of 360 seats in the Senate.

Following the Bourbon Restoration in 1874, the Spanish Constitution of 1876 enshrined Spain as a semi-constitutional monarchy, awarding the monarch—under the royal prerogative—the right of legislative initiative together with the bicameral Cortes; the capacity to veto laws passed by the legislative body; the power to appoint government members (including the prime minister); the ability to grant or deny parliamentary dissolution, the adjournment of legislative sessions and the signature of royal decrees; as well as the title of commander-in-chief of the armed forces. The monarch would play a key role in the turno system by appointing and dismissing governments, which would then organize elections to provide themselves with a parliamentary majority. This informal system allowed the two major "dynastic" political parties at the time, the Conservatives and the Liberals—characterized as oligarchic, elite parties with loose structures dominated by internal factions, each led by powerful individuals—to alternate in power by means of electoral fraud (pucherazo). This was achieved by assigning candidates to districts before the elections were held (encasillado), then arrange their victory through the links between the Ministry of Governance and the territorial clientelistic networks of provincial governors and local bosses (the caciques), excluding minor parties from the power sharing.

Under the 1876 Constitution, the Spanish Cortes were envisaged as "co-legislative bodies", based on a nearly perfect bicameral system. Both the Congress of Deputies and the Senate had legislative, control and budgetary functions, sharing equal powers except for laws on contributions or public credit, the first reading of which corresponded to Congress, and impeachment processes against government ministers, in which each chamber had separate powers of indictment (Congress) and trial (Senate).

Voting for the Congress of Deputies was on the basis of universal manhood suffrage, which comprised all national males over 25 years of age, having at least a two-year residency in a municipality and in full enjoyment of their civil rights. It was compulsory, though those older than 70, the clergy, first instance judges and public notaries (the latter two categories, within their respective area of jurisdiction) were exempt from this obligation. Additionally, voters were required to not being in active military service; nor being sentenced—by a final court ruling—to perpetual disqualification from political rights or public offices, to afflictive penalties not legally rehabilitated at least two years in advance, nor to other criminal penalties that remained unserved at the time of the election; neither being legally incapacitated, bankrupt, insolvent, debtors of public funds (including their substitutes or jointly liable parties), nor homeless.

The Congress of Deputies was entitled to one seat per each 50,000 inhabitants. 98 members were elected in 28 multi-member constituencies using a partial block voting system: in constituencies electing ten seats or more, electors could vote for no more than four candidates less than the number of seats to be allocated; in those with more than eight seats and up to ten, for no more than three less; in those with more than four seats and up to eight, for no more than two less; and in those with more than one seat and up to four, for no more than one less. The remaining 311 seats were elected in single-member districts using plurality voting and distributed among the provinces of Spain in proportion to their populations. Additionally, in those districts with uncontested elections (the number of candidates being equal to or less than the number of seats at stake), candidates were to be elected automatically without a vote.

As a result of the aforementioned allocation, each Congress multi-member constituency was entitled the following seats:

Voting for the elective part of the Senate was on the basis of censitary suffrage, which comprised archbishops and bishops (in the ecclesiastical councils); full academics (in the royal academies); rectors, full professors, enrolled doctors, directors of secondary education institutes and heads of special schools in their respective territories (in the universities); members with at least a three-year-old membership (in the economic societies of Friends of the Country); major taxpayers and Spanish citizens of age, being householders residing in Spain and in full enjoyment of their political and civil rights (for delegates in the local councils); and provincial deputies.

180 seats in the Senate were elected using an indirect, write-in, two-round majority voting system. Voters in the economic societies, the local councils and major taxpayers elected delegates—equivalent in number to one per each 50 members (in each economic society) or to one-sixth of the councillors (in each local council), with an initial minimum of one—who, together with other voting-able electors, would in turn vote for senators. The provinces of Barcelona, Madrid and Valencia were allocated four seats each, whereas each of the remaining provinces was allocated three seats, for a total of 150. The remaining 30 were allocated to special districts comprising a number of institutions, electing one seat each: the archdioceses of Burgos, Granada, Santiago de Compostela, Seville, Tarragona, Toledo, Valencia, Valladolid and Zaragoza; the six oldest royal academies (the Royal Spanish; History; Fine Arts of San Fernando; Exact, Physical and Natural Sciences; Moral and Political Sciences and Medicine); the universities of Madrid, Barcelona, Granada, Oviedo, Salamanca, Santiago, Seville, Valencia, Valladolid and Zaragoza; and the economic societies of Madrid, Barcelona, León, Seville and Valencia.