Change UK might not exist by the time of the next general election, interim leader Heidi Allen says.
She fuelled rumours of a possible merger with the Liberal Democrats by saying: “The format might be slightly different. I see a modern world of coalition”.
The party, which was formed when 11 MPs left the Tory and Labour parties, has so far failed to breakthrough and some polls even put it on less than 5%.
It also been beset by problems including failing to agree a logo in time for it to be use on the European election ballot paper and last week it lost its lead candidate in Scotland who defected to the Lib Dems.
Asked about the party's plans when it comes to a general election, Ms Allen told the BBC Radio 4 Today Programme: "Will I stand again in South Cambridgeshire, my constituency, as a Change UK [candidate]?"
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"It depends whether we have managed to bring together some of the other MPs from the House of Commons.
"The format might be slightly different but whatever the brand new world party looks like I'm absolutely not going back to the Conservatives."
But she personally denied that she had never considered defecting to the Liberal Democrats insisting: "I've never said or been tempted to do that."
Meanwhile Rachel Johnson, who is the big ticket name standing for the party in the south west, told the Times at the weekend that she was "the rat that jumps on the sinking ship."
She described Change UK as "a terrible name," adding that "they want to focus-group everything and they have a leadership team of about 11 people."
In contrast the Liberal Democrats are gaining ground by hoovering up Labour Remainers.
