Former UK Foreign Secretary Boris Johnson said, the United Kingdom needs to secure changes to Brexit deal’s Irish border backstop such as a time limit and an exit mechanism.

“Some of the ideas that the prime minister has mentioned in the House do seem sensible,” Johnson told, one of Britain’s most prominent Brexit campaigners. “I think you would need a time limit.”

“I think I would want to look very carefully at what was being proposed and it would have to give the United Kingdom a UK-sized exit from the backstop,” he said.