The Taoiseach says he'd be willing to work with Fianna Fail to form a government after next months general election.
Leo Varadkar made the comment in tonight's head-to-head leaders debate with Michéal Martin on Virgin Media.
The Fine Gael leader believes both men need to be grown-ups if the numbers add up.
Varadkar says he would work with Fianna Fáil in confidence or supply OR coalition if that's the only way the numbers could work #VMTVBigDebate
— Seán Defoe (@SeanDefoe) January 22, 2020
He argued: "My preference would be to form a coalition with old partners like Labour and independents... maybe new partners like Greens.
"But if it's the case that the people vote in a certain way and the only way we can form a stable government is for Fianna Fáil and Fine Gael to work together... well I'm willing to do that."
Responding to the Taoiseach's comments, Mr Martin insisted his party members had acted like grown ups during the election campaign - but claimed Fine Gael had not done the same.
The Fianna Fáil leader added: "There have been more personal attacks from Fine Gael on me than there has been on policies around education, childcare and other areas... that's the type of campaign you've run.