US President Donald Trump's impeachment trial will begin in the US Senate on Tuesday.
US chief justice John Roberts will preside over the trial as 100 members of the Senate will gather at 1800 GMT to decide if Trump abused his office.
He is accused of trying to pressure Ukraine into interfering in the 2020 US election, and ordering an investigation of former Vice President Joe Biden.
"The president did nothing wrong," Trump's lawyers responded in a 110-page brief submitted to the Senate on Monday.
This is the third a US President has undergone an impeachment trial, after Andrew Johnson in 1868 and Bill Clinton in 1999.


Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Ukraine peace talks stretch into second day at start of pivotal week for Europe
Flash floods kill at least 37 people in Morocco's Safi province
'Hero' who disarmed Bondi gunman recovering after surgery, family says
School bus accident in Colombia kills 17, injures 20
Australia plans tougher gun laws after father and son kill 15 at Bondi Beach
Police to release man detained over Brown University mass shooting
Shooting at Australia's Bondi Beach kills 12
