Another defection marks left-wing Democratic Revolution Party.

National Democratic Left calls members to rebel against Democratic Revolution Party leadership.

Leftist congressmen win more seats in Senate, despite pending injunctions.

While husband's indictment is still pending, leftist Padierna demands higher level in campaigns.

Chuchos win over Bejaranistas for Council majority at PRD.

Democratic Left will not allow Ebrard to appoint his own candidates for next term elections.

Lopez Obrador is announced as presidential candidate by leftist fraction at street meeting.

Political alliance in State of Mexico's forthcoming elections, dead and buried, according to PRD's leaders.

PRD's New Secretary General Padierna earns approval nod from Revolutionary Party.

Dolores Padierna will be G-8's nominee to lead the PRD leftist party.