Mike Johnson struggles to contain a GOP budget revolt

House Speaker Mike Johnson (R-La.) is once again grappling with persistent right-wing defectors ahead of a key budget vote that could come as soon as Tuesday evening.

Why it matters: The vote on a budget resolution is the critical first step towards passing the massive fiscal bill that President Trump has put forth.

"Every time we've had a big vote on the House floor, we're talking to members all the way up until the moment the vote closes," House Majority Leader Steve Scalise (R-La.) said at a press conference.

But Johnson, acknowledging the uncertainty, told reporters: "There may be a vote tonight, there may not be — stay tuned."

State of play: Several GOP lawmakers said Tuesday they remain opposed to the resolution, which would allow for $4.5 trillion in tax cuts, a $4 trillion debt ceiling increase and $2 trillion in spending cuts.