The situation has rankled Representative Peter A. DeFazio of Oregon, the chairman of the Transportation and Infrastructure Committee. Mr. DeFazio spent months shepherding the House infrastructure bill, which includes more substantial climate policy and more than 1,400 home-district projects, known as earmarks, from lawmakers in both parties.
“The bill in the Senate was written behind closed doors, and you know, that’s probably not going to be the best product,” Mr. DeFazio said on CNN on Monday. “Most of the people who wrote the bill are not senior people on the committees of jurisdiction who know a lot about transportation, or perhaps a number of them are resistant to the idea that we should deal with climate change.”
Pressed on whether he would ultimately block passage of the final product, Mr. DeFazio conceded that the $3.5 trillion reconciliation package “could fix a lot of the problems in this bill.”
“I’ve had that conversation with the White House — that’s possible,” he said. “So if we see major changes and things that are mitigated by the reconciliation bill, OK, then maybe we could move this.”
White House officials said they have remained in touch with House Democrats’ tensions. Mr. Biden has dispatched cabinet officials to meet with several of them, including Pete Buttigieg, the transportation secretary, who traveled to Oregon to laud Mr. DeFazio’s work on infrastructure.
“We’re in close touch with the president’s colleagues in the House, who he deeply respects and values as core partners in delivering on generational infrastructure progress,” said Andrew Bates, a White House spokesman. In recent days, the White House has pointedly shared polls and articles that show widespread support for the bipartisan plan and highlight substantial funding for climate resilience.
Senate Democrats, for their part, have vowed to remain united as they trudge through a marathon of votes to finish both the bipartisan infrastructure bill and the budget blueprint before leaving Washington for their August recess.