Four centrist Republicans broke with Speaker Mike Johnson on Wednesday and signed onto a Democratic-led petition that will force a House vote on extending for three years an enhanced pandemic-era subsidy that lowers health insurance costs for millions of Americans.

(AP) — The stunning move comes after House Republican leaders pushed ahead with a health care bill that does not address the soaring monthly premiums that millions of people will soon endure when the tax credits for those who buy insurance through the Affordable Care Act expire at year’s end.

Democrats led by Minority Leader Hakeem Jeffries of New York needed 218 signatures to force a floor vote on their bill, which would extend the subsides for three years.

Republican Reps. Brian Fitzpatrick, Robert Bresnahan and Ryan Mackenzie, all from Pennsylvania, and Mike Lawler of New York signed on Wednesday morning, pushing it to the magic number of 218. A vote on the subsidy bill could come as soon as January under House rules.

“Unfortunately, it is House leadership themselves that have forced this outcome.” Fitzpatrick said in a statement.