Biden has committed tens of billions of dollars to Kyiv's war effort, and at the weekend he reportedly ditched a long-standing red line on Ukraine's use of American weaponry to launch attacks deep into Russia. Donald Trump Jr tweeted that the president was trying to "get World War Three going" before his father took office.

When President Joe Biden worked to burnish his climate legacy in the Brazilian Amazon on Sunday, the unspoken presence of Donald Trump shadowed the historic stop.

"Stop playing by rules that no longer exist. At this point, it's not just spinelessness, it's complicity," the president-elect's estranged niece said.

The Biden administration is working against the clock to try to preserve at least some of the outgoing president’s legacy before Trump takes office.

President Joe Biden met with Chinese President Xi Jinping on the sidelines of the APEC conference in Lima, Peru -- their last meeting of Biden’s presidency.

A video of President Joe Biden appearing to "wander off" into the Amazon rainforest has gone viral on social media. The clip comes from the end of Biden's press conference Sunday from a section of forest in Manaus, Brazil, where he delivered remarks about conservation and the investments his administration has made in clean energy infrastructure.

Xi's remarks come after Trump tapped Taiwan supporters Marco Rubio and Mike Waltz for top spots in his administration.

Ukraine's President Zelensky reacts to the US decision by saying "such things are not announced. Missiles will speak for themselves".

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