Uruguayans are returning to the polls for a second round of voting to choose their next president. In Sunday's election, the conservative governing party and the left-leaning coalition locked in a close runoff after failing to win an outright majority in last month’s vote.

The result in Montevideo follows a trend of victories for anti-incumbency candidates in Latin America, and a regional leftward turn.

Mr. Delgado’s concession signaled an end to the short stint of the right-leaning government in Uruguay that in 2020, when President Luis Lacalle Pou took office, ended 15 years of government by the Broad Front. During that period, the Broad Front oversaw the legalization of abortion, same-sex marriage and the sale of marijuana.