The president toured the rainforest and promised Brazil funds for environmental initiatives, even as the incoming Trump administration appears poised to roll them back.

The trip is part of Biden’s final swing through South America before he hands the keys of the White House to Donald Trump, who becomes the United States’ 47th president in two months

Joe Biden will make the first trip to the Amazon rainforest by a sitting US president Sunday -- but his visit will be overshadowed by incoming leader Donald Trump's vows to roll back his green policies.