Colombians to vote for congress ahead of FARC peace accord

Colombia's President, and presidential candidate, Juan Manuel Santos (front 2nd L) celebrates with his wife Maria Clemencia (front L) and his vice-presidential team-mate German Vargas Lleras (front R) after registering their candidacy at the national electoral office in Bogota March 4, 2014. REUTERS/Jose Miguel Gomez

BOGOTA (Reuters) - Colombians vote on Sunday for a new congress that will tackle legislation for the next president and play a historic role in creating laws to end five decades of conflict if peace is reached with Marxist FARC rebels.

The ballot is likely to consolidate President Juan Manuel Santos as the frontrunner for a second straight term in a presidential vote on May 25, allowing him to continue talks with the Revolutionary Armed Forces of Colombia (FARC) that could end the war and transform Colombia's political makeup.