Members of Congress from both parties are open to revisions in aRepublican plan to raise $300 billion by overhauling the tax code,Democratic and Republican congressional aides said, even aslawmakers publicly rejected competing debt-cutting proposals.

Members of the supercommittee have talked about a higher topmarginal income tax rate than the 28 percent proposed this week byRepublican Senator Pat Toomey of Pennsylvania, a Republicancongressional aide and a Senate Democratic leadership aide said inseparate interviews. Democrats also want additional sources of newrevenue such as ending certain corporate tax expenditures, theDemocratic staff member said.

Each side is waiting for the other to make the next move, theDemocratic aide said. The Republican staff member said Toomey'splan was intended as a framework and not a final offer. Neitheraide was authorized to speak publicly.