(FOX NEWS) — President Donald Trump says he supports temporarily suspending the federal gas tax as the conflict with Iran continues to drive prices up.

Trump made the endorsement in an interview with CBS News on Monday. Pausing the gas tax would require an act of Congress.

“I think it’s a great idea,” Trump said. “Yup, we’re going to take off the gas tax for a period of time, and when gas goes down, we’ll let it phase back in.”

According to AAA, gas prices hit a high of over $4.52 on Sunday.