The co-chair of the Conservative Party, who raised millions for the 2019 general election, has quit just hours after Liz Truss was announced as the new prime minister.
Ben Elliott, a close ally of Boris Johnson, resigned this afternoon.
With a reshuffle coming tomorrow, some members of the current top team in the government may stand down in anticipation of any changes.
However, a source says that Mr Elliott is still supportive of the PM-elect.
