Tory MPs are urging the Cabinet to show some "backbone" and oust Boris Johnson as backbench anger mounts against the Prime Minister.
Storm clouds are gathering again for Mr Johnson after the disastrous loss of the Red Wall seat of Wakefield, and Tiverton and Honiton in the Tories' southern heartlands.
The dramatic double by-election blow on Friday came only weeks after the PM clung onto power by winning a Tory no confidence vote.