House G.O.P. Races to Revamp Major Policy Bill, as Trump Joins Hunt for Votes

House Republican leaders labored on Wednesday to find the votes to pass their sweeping domestic policy bill, haggling over changes to win over holdouts as President Trump pressed recalcitrant conservatives to fall in line.

With several G.O.P. lawmakers still unsatisfied with the sprawling tax and spending cut package, Speaker Mike Johnson and his deputies spent Wednesday toiling behind the scenes to hammer out enough concessions to cobble together the votes in their fractious ranks to push it through the House.

After a meeting with Mr. Trump and fiscal conservatives at the White House, Mr. Johnson again insisted his party was close to a deal that could unify his party. But as evening set in, Republican leaders had yet to release any new language, and the House Rules Committee, which was slogging through a marathon session to prepare the legislation for the floor, had yet to vote to advance it.

Even as Mr. Trump and White House officials ramped up the pressure on conservative Republicans to drop their objections and embrace the bill, opposition continued to pile up. Representatives Mark Harris of North Carolina, David Schweikert of Arizona, John Rose of Tennessee and Warren Davidson of Ohio all said on Wednesday they objected to the measure.

With his razor-thin margin of control in the House, Mr. Johnson can afford to lose no more than three Republican votes on the legislation if all Democrats oppose it, as expected, and every member votes. The speaker has insisted the bill must pass before Memorial Day, and he was pressing for a vote later Wednesday night or Thursday.

White House officials released a statement that called on Congress to “immediately pass this bill,” with an implicit threat to any opponent.