A deal with Sen. Tom Coburn (R-Okla.) that freed a stalled stopgap highway-aviation bill is changing another bill. A two-year highway measure that Environment and Public Works panel leaders are drafting now will give states new flexibility in the transportation enhancements program. Under current law, states must spend 10% of their Surface Transportation Program aid on bike paths and other enhancements. Coburn said that diverts funds from other uses, such as bridge upgrades.