British foreign minister Jeremy Hunt on Tuesday said the draft withdrawal deal agreed by Prime Minister Theresa May with the EU in November needs to be renegotiated.
Adding that the Irish backstop could be changed, he said it would be "political suicide" to pursue a no-deal Brexit through a general election.
"Trying to deliver no deal through a general election is not a solution; it is political suicide," Hunt wrote in Tuesday's Daily Telegraph.
Hunt added that he would look for more time to secure a new Brexit deal if he replaced May.
"A different deal is, therefore, the only solution – and what I will pursue if I am leader."

Israel carries out rare airborne raid in Lebanon; 16 killed in strikes
US skips congressional review to approve arms sale to Israel
Russia hits Ukraine with drones, missiles, kills at least 10 in Kharkiv
Partial resumption of air navigation in Qatar
Kuwait and Qatar thwart fresh wave of Iranian attacks
