The Liberal Democrat MP said his party would only support a general election once a no-deal Brexit was “off the table”.
She won the Liberal Democrat leadership race in a landslide, defeating Sir Ed Davey by nearly 20,000 votes.
The Lib Dem leadership hopeful came under fire for his choice of language in a newspaper column.
The politician has announced her bid to become the next leader of the Liberal Democrats.
Former Liberal Democrat cabinet minister Sir Ed Davey has ruled out a coalition with both Labour and the Conservative Party if he becomes the new party leader.
Liberal Democrat Ed Davey has described the party as being “back in business” after they gained over 300 council seats in the local elections.
In an interview on the Matthew Wright show, Sir Ed Davey said the the IS teen was a "British citizen" and therefore a "British responsibility".
The Liberal Democrat said he "agreed with President Trump" that around 800 ISIS fighters from EU countries should be brought home to face trial.