A Conservative MP has broken ranks to support making Jeremy Corbyn a caretaker prime minister to avert the “generational damage” from a no-deal Brexit.

Guto Bebb criticised other parties and MPs who have rejected the Labour leader’s offer, after the Liberal Democrats branded it “nonsense”.

“Those who have said they will do anything necessary to stop the long-term damage of a no-deal exit must take seriously this type of offer,” Mr Bebb said.

“I certainly take the view that a short-term Jeremy Corbyn government is less damaging than the generational damage that would be caused by a no-deal Brexit.”

Mr Corbyn has called for Boris Johnson to be toppled – when MPs return to Westminster next month – with himself installed as a stopgap premier to block a no-deal exit on 31 October.

Tariffs in the event of a no-deal Brexit Show all 15 1 /15 Tariffs in the event of a no-deal Brexit Tariffs in the event of a no-deal Brexit Pork There will be tariffs on pork in order to protect British farmers Getty Tariffs in the event of a no-deal Brexit Cheese There will be tariffs in place on some cheeses including €22.10/100kg of cheddar, €19.10/100kg of processed cheese and €18.60/100kg on some blue cheeses Getty Tariffs in the event of a no-deal Brexit Milk There will be no tariffs in place on milk Getty Tariffs in the event of a no-deal Brexit Car Parts There will be no tariffs on car parts imported from Europe PA Tariffs in the event of a no-deal Brexit Cars However finished cars will face tariffs of 10.6% Getty Tariffs in the event of a no-deal Brexit Alcoholic drinks There will be no tariffs on alcoholic drinks - except on some rums due to ingredients used in their distilling process Getty Tariffs in the event of a no-deal Brexit Beef There will be tariffs on beef in order to protect British farmers Getty Tariffs in the event of a no-deal Brexit Fish There will be no tariffs on many types of fish including cod, haddock, salmon and sea bass Getty Tariffs in the event of a no-deal Brexit Fruit and vegetables There will be no tariffs on almost all fruit and vegetables Getty Tariffs in the event of a no-deal Brexit Chocolate There will be no tariffs on chocolate or other cocoa products Getty Tariffs in the event of a no-deal Brexit Poultry There will be tariffs on poultry in order to protect British farmers Getty Tariffs in the event of a no-deal Brexit Ceramics There will be some tariffs in place on ceramis Getty Tariffs in the event of a no-deal Brexit Steel There will be no tariffs on steel Getty Tariffs in the event of a no-deal Brexit Coal There will be no tariffs on coal Getty Tariffs in the event of a no-deal Brexit Lamb/Mutton There will be tariffs on the meat of sheep in order to protect British farmers Getty

He has promised to call a general election, once an extension to the Article 50 process has been agreed, with a Final Say referendum on Brexit to follow if Labour wins.

Mr Bebb – who is standing down at the next election – added to growing pressure on Jo Swinson, the new Lib Dem leader, to rethink her outright opposition to Mr Corbyn’s audacious bid.

Ms Swinson accused Mr Corbyn of “demanding the keys to No 10 as a precondition for a vote of no confidence”, which Labour signalled would come within “days” of the Commons sitting on 3 September.

“What we need in a leader of an emergency government is a long-serving member of parliament who is respected on both sides of the house,” she said.

“Someone like Ken Clarke or Harriet Harman – the father and mother of the house. They are hugely experienced and, unlike Jeremy Corbyn, or indeed myself, they are not seeking to lead a government in the long term.”

But Caroline Lucas, the Green MP, issued a video message urging Ms Swinson to rethink, saying: “Jo, please change your mind. Jeremy Corbyn has done the right thing.”

Urging the Lib Dem leader to join talks, Ms Lucas added: “Let’s have that negotiation with him and not reject this offer out of hand.”

Nicola Sturgeon, the Scottish National Party leader, echoed the call, saying: “Jeremy Corbyn’s suggestion is not the only possible option – but given the circumstances, nothing should be ruled out at this stage.

“It’s no secret, I’m not the greatest fan of Jeremy Corbyn, but we won’t rule out any option if it helps avert what is a looming catastrophe of a no-deal Brexit.”

Senior Tories Dominic Grieve, Caroline Spelman and Sir Oliver Letwin issued a joint letter, with former Conservative Nick Boles, welcoming talks, but did not endorse the Labour leader as a stopgap in No 10.

Green MP Caroline Lucas appeals to Jo Swinson to change her mind about Jeremy Corbyn

But Anna Soubry, the leader of the Independent Group for Change, said: “I would not support a government of national unity that is led by Jeremy Corbyn for all manner of reasons.”

Mr Bebb’s endorsement of a Labour prime minister – even a temporary one – is certain to trigger calls for him to be stripped of the Conservative whip.