'No quid pro quo. Pure and simple', says Trump

US president Donald Trump has denied testimony from the top US diplomat in Ukraine who linked Trump more directly to a pressure campaign on Ukraine to conduct investigations that would benefit him politically. Video: The White House

100 days of the Government

Political Editor of The Irish Times, Pat Leahy, reviews the beginning of Micheál Martin‘s second term as Taoiseach. Video: Dan Dennison