Newly appointed education secretary Michelle Donelan has resigned after just 35 hours in the job, making her the shortest-serving in the history of the role.
Donelan was promoted from universities minister to the top role on Tuesday evening, after Nadhim Zahawi was made chancellor.
But this morning she tweeted that she has handed in her resignation.
She told prime minister Boris Johnson: “I see no way that you can continue in post, but without a formal mechanism to remove you it seems that the only way that this is only possible is for those of us who remain in cabinet to force your hand.”