By James Tapsfield, Political Editor, For Mailonline
Published: 09:16 BST, 16 June 2019 | Updated: 09:17 BST, 16 June 2019
Veteran Tory Ken Clarke today joined threats to 'bring down' any PM who tries to force No Deal Brexit.
The former chancellor said he was ready to vote no confidence in any 'idiot' who made a bid to take the UK out of the EU without approval from Parliament.
The stark message was clearly directed at Boris Johnson, who has insisted he will ensure the UK leaves the bloc by Halloween - with or without a deal.
The leadership front runner has also refused to rule out suspending Parliament in October to stop MPs from blocking No Deal.
Tory Remainers such as former Attorney General Dominic Grieve have made clear they will vote with Labour to bring down the government if it tries to bypass MPs.
Former chancellor ken Clarke (pictured centre at Rory Stewart's leadership campaign launch last week) said he was ready to vote no confidence in any 'idiot' who tried to take the UK out of the EU without approval from Parliament
Lining up with the Opposition in a confidence vote would be a 'nuclear option' to put the brakes on Brexit - and any Conservative who did it would be banned from ever representing the party again.
However, the government's wafer-thin majority means only a handful of MPs need to switch sides to defeat it in the Commons.
In an interview with the Observer today,