Sen. Bob CorkerBob CorkerThe Hill's 12:30 Report Senate Foreign Relations chair: Erdogan referendum win 'not something to applaud' Groups warn of rural health 'crisis' under ObamaCare repeal MORE (R-Tenn.) signaled Sunday that lawmakers could increase sanctions against Iran if nuclear negotiations do not yield an agreement.
"There's no question," Corker said. "If the nuke deal falls apart, then there will be more sanctions."
Republicans have signaled that they will take up a new Iran sanctions bill in January. Many Democrats, including the Obama administration, are opposed to new sanctions as the negotiations with Iran have continued.
Corker said that the bill would move "regular order" and not immediately.
When pushed on the timing of the legislation, he said: "We'll see."