Florida transportation advocates on Thursday flashed yellow caution lights at a key plank of a bipartisan debt commission’s recommendations for balancing the federal budget, raising the federal tax on gasoline.

Congress is more than halfway through its six-week traditional August recess. While members of Congress are spending time with constituents, family and foreign heads of state in other countries, dozens of Capitol Hill staffers are scrambling and pouring through the U.S. Tax Code, trying to come up with new ideas to pay for the various new government programs that will be proposed this fall.