Capitol attack committee requests cooperation from key Republican trio

Mo Brooks, Andy Biggs and Ronny Jackson receive letters as panel looks to establish extent of role in Trump's bid to overturn election

The House select committee investigating the US Capitol attack on Monday asked three Republican members of Congress to assist its inquiry, as it seeks to establish the extent of their roles in Donald Trump's attempt to overturn the 2020 election.

The panel sent letters requesting voluntary cooperation to Mo Brooks, Andy Biggs and Ronny Jackson, three congressmen who strategised ways to stop certification of Joe Biden's election win or appeared to have connections to elements involved in the Capitol attack.