In an election that has overturned a decades-long status quo in Colombian politics, former leftist guerrilla and Bogota mayor Gustavo Petro won the presidency on Sunday/. He beat his competitor, Trumpian businessman Rodolfo Hernández, by a margin of 50.44% to 47.03%, with 100 percent of the votes counted.

Petro’s victory is the latest win in a Latin American “pink tide,” with leftists recently winning presidential elections in Bolivia, Chile, Honduras, and Peru, and poised to take power once again in Brazil.

What to do about the country’s booming coca and cocaine trade and the violence that surrounds it was a central theme in the campaign—with both candidates critical of a war on drugs intertwined with a ferocious counterinsurgency financed by the United States to the tune of $20 billion since the days of Plan Colombia and paid for with the blood of hundreds of thousands of Colombians.