A motion of no confidence in Rishi Sunak's Government will be tabled after the Tories suffered crushing losses in last week's local elections.
The devastating results show the public has no faith in the under-fire PM and his ministers, the Lib Dems say.
Leader Sir Ed Davey, buoyed after his party took control of 12 councils and gained an extra 407 seats following Thursday's vote, is set to table the motion as soon as Parliament returns.