Congressional Republicans are not ruling out raising the gas tax to keep afloat the broke Highway Trust Fund.

Finding money for the nearly insolvent fund, which pays for road construction, among other related projects, will be among the immediate challenges facing the new Republican Congress.

One proposal has been to raise the fuel tax that has funded the Highway Trust Fund in the past, although recently not at sufficient levels. In spite of some hardline opposition among Republicans to any new taxes, Republican leaders are not eliminating that idea.

"I don't think we take anything off the table at this point," Sen. John Thune, a member of Senate Republican leadership, said on "Fox News Sunday."

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