Sen. Rand Paul stopped at Nashville airport security

Paul, the son of GOP candidate Ron Paul, refused a TSA pat down in Nashville.

(AP, ABC7) - U.S. Sen. Rand Paul says he was stopped briefly by security at the Nashville airport when a scanner found an "anomaly" on his knee.

The Republican who frequently uses the airport about an hour from his Bowling Green, Ky., home, said that he asked for another scan but refused a pat down by airport security.

Paul was making his way back to capitol to speak at the March for Life demonstration.

“I had probably biggest speech of career,” he says.

He said he was "detained" at a small cubicle and couldn't make his flight to Washington for a Senate session.

“I was told not to leave a cubical, when I stepped out of the cubical I was contained and put back in the cubical, seemed like I was being detained,” he says. “When they got tired of detaining me they evicted me, I think I would have been arrested if I had not done what I was told.”

Paul, the son of Republican presidential candidate Ron Paul, said the situation reflects his long-standing concern that the TSA shouldn't be "spending so much time with people who wouldn't attack us."

The TSA rdisputes detaining Paul, saying that passengers who won't finish screenings aren't allowed into secure areas.

"When an irregularity is found during the TSA screening process, it must be resolved prior to allowing a passenger to proceed to the secure area of the airport," according to the TSA. "Passengers who refuse to complete the screening process cannot be granted access to the secure area in order to ensure the safety of others traveling."