Last week, Sens. Chris Murphy, D-Conn., and Bob Corker, R-Tenn., proposed a plan to raise gas and diesel taxes each by 12 cents over the next two years, and then index the taxes to keep pace with inflation. The increase would be applied in two increments of 6 cents each. But many lawmakers in both parties are reluctant to raise fuel taxes fearing a backlash from motorists.
House Republican leaders previously offered a plan that would have cut funding for the U.S. Postal Service and used the savings to shore up the fund, but senators rebuffed the proposal and it became clear that there weren't enough GOP votes to pass the measure in the House, either.