The US defence secretary has defended his record following a Republican congressman's attempt to impeach him. BBC correspondent Gary O'Donoghue breaks down the exchange and the political dynamics at play. The move by a member of the defence secretary's own party has raised questions about internal divisions within the Republican caucus.
The BBC’s Gary O’Donoghue breaks down how the US defence secretary defended his record after a Republican congressman launched an attempt to impeach him.
