The Senate foreign relations committee on Wednesday voted unanimously for the bipartisan bill which will now await a slot to go to the Senate. Senator Tim Kaine, the draft legislation’s lead Democratic sponsor, said it was a response to fears that the Trump administration is actively considering withdrawal.

“We’re aware that it has been seriously debated and seriously considered in the White House at the highest levels,” Kaine told the Guardian. Trump’s former national security adviser, John Bolton, reportedly warned last month that, if re-elected in 2020, Trump could go “full isolationist” and withdraw from the 70-year-old North Atlantic alliance.

Kaine predicted his bill to block a Nato withdrawal would gain overwhelming support from the House of Representatives and win a veto-proof majority in the upper chamber of at least 67 votes.