The White House withheld funds less than two hours after President Donald Trump spoke to leadership in the Ukraine in July. The core components of the impeachment process have been those related to the promised meetings with the US President and aid to the Ukraine in a quid pro quo relationship. The administration had stopped critical defense aid for Ukraine at the direction of acting White House Chief of Staff Mick Mulvaney.
The Russians and now Ukrainians have been in the news since the 2016 election, as they are considered to be involved deeply in US politics.
The newly elected president, Volodymyr Zelenskiy was apparently asked by the Trump Administration to check into Hunter Biden and his affiliation with a firm that was said to have him on their staff for unknown reasons. It is likely that Trump will be acquitted, as it would require two-thirds majority for a conviction.