Chairman of the House Intelligence Committee Adam Schiff will control most of the questioning.   Photograph: Reuters/Joshua Roberts/File Photo

Millions of Americans are expected to tune into TV screens on Wednesday as the first public hearings in the impeachment inquiry into US president Dona(...)

Lt Col Alexander Vindman, the top Ukraine expert on the US National Security Council, arriving to speak with House impeachment investigators on Capitol Hill in Washington on Tuesday. Photograph: Anna Moneymaker/The New York Times

Lt Col Alexander Vindman, the top Ukraine expert on the National Security Council, told House of Representatives impeachment investigators on Tuesday (...)

More than two dozen Republican politicians speak to the media after storming into the room used by the House of Representatives’ impeachment inquiry into US president Donald Trump. Photograph: Jim Lo Scalzo/EPA

A US House of Representatives impeachment inquiry devolved into chaos on Wednesday as Republican politicians, encouraged by US president Donald Trump (...)