Adam Schiff

Our guide to the key figures in President Donald Trump's impeachment trial.

The House Intelligence Committee chairman is now the lead prosecutor in the impeachment trial.

Top Democrats urge Republicans to cross party lines and side with them in impeaching Donald Trump.

A US diplomatic aide says he overheard an envoy's phone call with the president in July.

The investigation has until now been held behind closed doors, but will be televised.

The Pentagon confirms their capture - and says the IS leader's remains have been disposed of.

They forced their way into a secure meeting room, after Trump urged Republicans to "get tough".

A letter to Democrats says President Trump "cannot participate in your partisan and unconstitutional inquiry".

Democrats vow to issue a subpoena to the envoy, but President Trump calls them a "kangaroo court".

A second whistleblower has come forward in the Trump-Ukraine inquiry, lawyers tell US media.

The president steps up his attacks on Democrats as proceedings against him gather pace in Congress.

The US secretary of state said five officials due to testify before committees this week would not appear.

The lawyers say they are alarmed by the US president's comments as he faces an impeachment inquiry.

The US secretary of state is ordered to turn over documents relating to the Ukraine controversy.

The whistleblower's complaint says officials hid details of Mr Trump's call with Ukraine's leader.