They are said to be weighing up the “attractiveness” of the newly formed political entity following the defection eight Labour and three Tory MPs last week. The group, which has plans to become a fully-fledged political party soon, is hopeful that ministers could jump ship soon. A senior TIG source said: “The notion of there being a new party and its attractiveness is something I have spoken to with sitting ministers over the last 12 months.”
Former Labour MP Luciana Berger and TIG member also told Sky News: “It’s no secret that MPs from all sides of the House are seriously considering their futures within existing political parties.”
It comes as new poll showed a quarter of voters say they would consider voting for TIG.
Overall, 32 percent of Labour supporters say they are either likely or very likely to vote for a TIG candidate if they stood in their constituency.
By contrast the POLITICO-Hanbury poll found that just 19 percent of Conservative supporters said they are either likely or very likely to vote for a TIG candidate.
Former Labour MP Chuka Umunna was named as the spokesman for the new group on Friday.
Ex-Conservative MP Sarah Wollaston has been assigned responsibility for “new colleagues”.
Mr Umunna said the group would “draw on all the talents and experiences of our group” but as it was not a political party, it would not have a leader.
The group says it aims to “change politics” and offer voters “a proper alternative to the broken politics being offered by the main political parties”.
The group is now joint fourth-largest with the Lib Dems in Parliament.
Among its members’ reasons for leaving their parties were the Government’s handling of Brexit and Labour’s Brexit stance – as well as the Labour leadership’s handling of anti-Semitism.
Sources said it planned to register as a party but did not yet have a name and was not talking to big donors – but had received thousands of small donations.
They said former Labour prime minister Tony Blair, who has previously been linked with suggestions a new centre-ground party would be set up, did not know the group was about to form.
“We are a group looking at politics for the 21st century, not the 20th century,” the source said.