Founding in 2004–2005 Originally named as
Social Democratic and Peasant Alternative Party, the party started as an alliance between two political leaders,
Ignacio Irys Salomon and Patricia Mercado along with peasantry factions. Although, most of its members also come from four other social democratic parties who have lost registration and merged from the following
Social Democracy Party led by
Gilberto Rincón Gallardo,
México Posible (
originally led by Patricia Mercado),
Fuerza Ciudadana and the
Partido Campesino y Popular.
2006 elections During 2006, The peasant wing of the PSD was headed by Ignacio Irys Salomón, as part of the fractured
Coalition of Urban and Peasant Democratic Organizations which brings together ejidatarios, small landowners and commoners. The party was seriously fractured, since it was a new party right before the 2006 elections. The peasant wing decided to promote the candidacy of pharmaceutical businessman
Víctor González Torres, who was highly popular among them and challenged Mercado's candidacy, assuming that the latter did not have sufficient support within the party. González Torres proclaimed himself as candidate and began a media campaign against Mercado. The
Electoral Institute ratified Mercado's candidacy for presidential candidate of the party. After ratification was confirmed for Mercado, Víctor González campaigned without a political party or registration as a candidate. Some of its principal members joined the
Citizens' Movement Party. == Ideology ==