Republican Tim Scott Timothy (Tim) Eugene ScottAuthor Ryan Girdusky: RNC worked best when highlighting 'regular people' as opposed to 'standard Republicans' Now is the time to renew our focus on students and their futures GOP lobbyists pleasantly surprised by Republican convention MORE (R-S.C.) in an interview broadcast Sunday said Congress should have a say in the Pentagon potentially funding a wall on the U.S.-Mexico border, an idea President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE has reportedly floated in recent days.

“Well, certainly, I think it would take an act of Congress to make sure that we prioritize and appropriate the dollars for that objective. The reality of it is, as commander in chief he can certainly send signals through [Defense] Secretary [James] Mattis to have a conversation with Congress about where those dollars should be spent,” Scott told CBS’s “Face the Nation.”

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Scott’s comments come after the Washington Post reported last week that the president is urging the Pentagon to pay for the border wall.

The South Carolina senator touted increased military spending, but said Congress will “absolutely” need to be part of any decision about the military paying for the wall, which was one of Trump’s signature campaign promises.

“However, our southern border is very porous. The truth is that more folks came through our southern border that did not come from Mexico,” said Scott. “So it is certainly a national security issue.”