PHOENIX (AP) — The son of former Vice President Dan Quayle unveiled a TV campaign ad Wednesday in his bid for a Congress in which he calls President Barack Obama “the worst president in history” and tells Arizona voters that he wants to “knock the hell” out of Washington.

Ben Quayle’s provocative ad, aimed at voters in Arizona’s 3rd Congressional District ahead of the Aug. 24 GOP primary, was released amid allegations that he posted items under an alias for a racy social website a few years ago.

In the campaign ad, the 33-year-old Quayle faces the camera directly and begins by saying, “Barack Obama is the worst president in history.” Quayle’s generation will “inherit a weakened country,” he says.

He goes on to implore voters to send him to Congress: “I love Arizona. I was raised right. Somebody has to go to Washington and knock the hell out of the place.”