The impeachment trial of US President Donald Trump is about to start in the US Senate.
Trump is charged with abusing his office by pressing Ukraine to investigate a political rival, and obstructing Congress. It's only the third time in history that a US president has faced charges of high crimes and misdemeanors.
The White House has urged the Senate to swiftly reject the charges and acquit Trump.
RNZ's correspondent in Washington DC is Simon Marks.
