Donald Trump appoints UN ambassador and border tsar

US President-elect Donald Trump has made two more key appointments ahead of his return to the White House in January.

Tom Homan, 62, will serve as Trump's "border tsar", having previously served as the returning president's acting director of Immigration and Customs Enforcement.

New York Congresswoman Elise Stefanik, 40, has also been made ambassador to the United Nations, the BBC's US partner CBS News has confirmed.

Meanwhile, Trump's Republican Party are edging closer to full control of the US Congress. They already have a majority in the Senate and need to win just a handful of seats to take the House of Representatives.