When Boris Johnson resigned as Prime Minister in the summer, he likened his fellow MPs who had turned against him to a herd.
"As we've seen at Westminster, the herd is powerful and when the herd moves, it moves," he said at a lectern outside Number 10 Downing Street.
But after the chaotic implosion of his successor Liz Truss' premiership, is the herd moving back in Mr Johnson's direction?