Many of Republicans’ traditional business backers have urged a deal including tax increases to keep the economy from tipping back into a recession.

“Their position as the party of no new taxes is unsustainable,” said Bernadette Budde, who retired this month as a strategist for the Business Industry Political Action Committee. “If you’re not going to listen to the business community about economic problems, who are you going to listen to? Some talk-radio host? Some blogger? Some political operative?”