Colombia set for combative runoff with divisions over peace

Colombia's presidential election is heading into a divisive runoff between two ideological opposites as the conservative first-place finisher in Sunday's voting took a hard line against the country's peace deal while his rival pledged to champion the poor and excluded.

Former senator Ivan Duque won nearly 39 percent of vote, falling short of the 50 percent threshold needed to avoid a second round in three weeks. One-time rebel Gustavo Petro got 25 percent support, edging out former Medellin mayor Sergio Fajardo, who could end up being kingmaker following a surprise surge.

The showdown between Duque and Petro could have broad implications for the nation's peace agreement...