Sen. Tom Coburn (R-Okla.) will insist that any federal aid to deal with the tornado in his home state must be offset by budget cuts.

(J. Scott Applewhite/AP) (J. Scott Applewhite/AP)

"He will ask his colleagues to sacrifice lower priority areas of the budget to help Oklahoma," spokesman John Hart said. Should other Republicans join Coburn, it could set up a fight similar to the January tug-of-war over Hurricane Sandy funding. That aid package was delayed by GOP opposition and ultimately passed with mostly Democratic support.