The former president crossed the border from Argentina and was welcomed by a large group of supporters, just a day after his former economy minister, Luis Arce, was sworn in as president.

After mass protests, and amid a pandemic, Chileans go to the polls Sunday for a referendum over whether to scrap the constitution introduced under Gen. Augusto Pinochet's rule.

Luis Arce, a candidate handpicked by former President Evo Morales, is expected to be confirmed as the winner in the country's most important presidential election in a generation.

Motorists near Colombia's border with Venezuela used to opt for cheaper, smuggled gas from the neighboring country. Now the tables have turned.

Pandemic emergency aid gave an unlikely ratings boost to President Jair Bolsonaro, who has criticized welfare and protested virus prevention measures. Now he's weighing further social spending.

Nicolás Maduro has remained in control despite international pressure and attempts to remove him, while opposition leaders weaken.