Johnson, the favourite to win a Conservative leadership election and so become the next prime minister, has refused to rule out suspending, or proroguing, parliament to ensure Britain leaves the European Union on October 31 - with or without a deal.
Clark said that a no-deal Brexit would be "enormously damaging" for the United Kingdom and said he would do everything in his power to persuade his colleagues in government to prevent it from happening and to get a good deal.
Asked if a no-deal Brexit would be similar to the financial crisis of 2008, the chancellor said: "It could be".
"So I'm not saying this is going to happen but this is what it's being discussed", she added. Both of these can not be true.
The Conservative politician Boris Johnson, who is the favorite to succeed Theresa May, may work on a plan about how to deliver the Brexit together with several Key EU players.
Ms Rudd added: "I'm backing Jeremy Hunt because I think he's the best person to be able to get the best deal amended from the European Union and be able to sell that in Parliament to people".
The victor, and new Prime Minister, is expected to be announced on July 23.
"I actually think there's quite a difference between Parliament and the public". It has been a very hard decision for me, but having now attended hustings, observed multiple debates and having carefully considered the choice before me I am confident in my decision. "A decision was taken just get on with it and they are not in that same polarised way that Parliament has been about this issue", she said.
A ComRes survey for the Telegraph suggested that an election would leave the Tories with 345 seats to Labour's 207, with the Brexit Party on zero, following Mr Johnson's claim that he is prepared to seek a No Deal Brexit.
As THE Conservative leadership race reaches its final stages, the two remaining candidates, Boris Johnson and Jeremy Hunt, attended the Cardiff hustings on 6th July to make their case to the party membership, for who should be the next leader. "It needs to return".