Senator Charles Schumer sent a letter to House Speaker John Boehner calling to fix more than 1,300 leaks in the Capitol Dome at the cost of $61 million.
The measure would be added to an upcoming stopgap spending bill to keep the government running into next year.
Schumer says it would be a "national embarrassment" for the dome to continue to decay.
"There is a time and a place to debate federal spending and the proper role of government, but most Americans believe that when your house has a leaky roof, you pay to fix the roof," Schumer said. "Postponing these repairs by another six months will only increase the project's price tag down the road."