“This bipartisan infrastructure bill was essentially a Problem Solvers product,” said Rep. Tom Malinowski (D-N.J.), a member of the coalition strongly urging their colleagues to back the bill. “It would not be an argument in favor of bipartisanship for the Republicans who are part of that [bill] to turn their backs on it now.”

Roughly 10 Republicans are expected to vote for the infrastructure deal, nearly all of them Problem Solvers members, according to lawmakers in both parties who are keeping an informal whip count. But that precise number remains in flux amid uncertain Democratic dynamics.

Rep. John Katko (R-N.Y.) put his decision to vote yes bluntly: “I helped write it.”

While a small corner of the GOP is eager to prove cross-aisle cooperation is alive and well, it’s a complicated vote for many moderate House Republicans, who are under intense pressure from party leaders not to deliver a win for Biden — and potentially hurt their chances of flipping the House. One such Republican described House Minority Leader Kevin McCarthy’s whipping operation as “strong.”