WASHINGTON — Republicans and Democrats are struggling to find common ground on a long-term debt deal. But as economic growth has weakened this quarter, they are at odds over what the flagging recovery needs in the immediate future, too.

The Obama administration is arguing that the sluggish economy requires a shot in the arm, and it included tens of billions of dollars of little-noticed stimulus measures in its much-noticed proposal to Congressional leaders last week. But Republicans have countered that the country cannot afford to widen the deficit further, and have balked at including the measures in any eventual deal.

The stimulus measures in the White House’s debt proposal stem from President Obama’s long-since-scuttled American Jobs Act proposal, and include a continuation of emergency support for long-term unemployed workers, an extension of the payroll tax cut, billions in infrastructure investment and a mortgage refinancing proposal.

“We have a very good plan, a very good mix of tax reforms” and savings, said Timothy F. Geithner, the Treasury secretary, on ABC News last weekend. “We can create some room to invest in things that make America stronger, like rebuilding America’s infrastructure.”