The US House of Representatives is preparing to vote on impeaching President Donald Trump.
Mr Trump is accused of pressuring Ukraine to dig up damaging information on one of his main Democratic challengers for the presidency in 2020, Joe Biden, and his son Hunter.
The impeachment process kicked off in September after a formal complaint from a whistleblower – an unnamed intelligence official who wrote a letter expressing concern about Mr Trump’s 25 July call with President Volodymyr Zelensky.
A rough transcript of the call revealed that President Trump had urged President Zelensky to investigate discredited allegations against Mr Biden and his son.
President Trump, who is a Republican, strongly denies any wrongdoing.
Video by Tristan Cimini and Shrai Popat