Bernie Sanders wants people to know that he has an "ample supply of underwear."

The Vermont senator and Democratic presidential candidate was portrayed by "Seinfeld" co-creator Larry David in a spoof of the Democratic debate. At one point, David launched into an extended rant that included a riff on Sanders' personal possessions.

"I don't have a super PAC. I don't even have a backpack," said David as Sanders. "I own one pair of underwear. That's it. Some of these billionaires, they got three, four pairs. And I don't have a dryer. I have to put my clothes on the radiator. So who do you want as president? One of these Washington insiders? Or a guy who has one pair of clean underwear that he dries on a radiator?"

CBS News digital journalist Kylie Atwood asked Sanders about his supply of undergarments during a campaign stop in Iowa Sunday.

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"Last week I bought my second pair of underwear," Sanders said with a straight face. "That is a joke. Don't write it down, that was a joke. I have an ample supply of underwear."

His suits, however, were once in short supply.

"When I was mayor of the city of Burlington, I think I did have one suit but I have now, being a United States senator, increased my number of suits," he added.

Sanders joked that his team was going to put David on stage at his next rally.

"He does it better than I do," he said.