2020 Democrat Joe Biden had a tough time remembering what kind of shotgun he owns while speaking to a crowd of supporters about gun violence in America.

At a campaign event in Ames, Iowa, on Tuesday evening, the former vice president addressed several problems facing the United States, including school shootings, less than two weeks before the state's first-in-the-nation caucus.

"Folks, we’ve got to change. We’re in a battle for the soul of this country," he said. "The idea that we’re in a situation where — how many of you sent your kids or grandkids to school this September? Instead of learning how to drop, cover, and roll for a fire drill, they’ll learn how to duck and cover. Talk about moral depravity. We cannot even get assault weapons out of our schools."

He continued, "The greatest concern kids have in terms of polling, age 7 to 20, is being shot in school. In the United States of America. That’s a stain on the soul of this country."

Biden went on to affirm his support for gun rights with an attempt to relate to voters by noting that he owns a shotgun, but he struggled to recall what kind.

"I support the Second Amendment," he said. "I own a 20 gauge and a 10 — excuse me, a 12 gauge shotgun. But my Lord, any of you guys who need a clip that has 100 rounds in it, you shouldn’t be hunting, man. You’re a danger to yourself."

The Delaware Democrat raised eyebrows during the early months of his campaign with a series of blunders, including a claim that students from Marjory Stoneman Douglas High School "came up to see me when I was vice president" following a mass shooting at their Parkland, Florida, school in 2017. However, he had been out of office for a year by the time the shooting took place.

Biden was vice president, though, during the 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, which took the lives of 20 young students and six staff members.

The former vice president has polled in first place nationwide among Democrats vying for the party's nomination for most of the 2020 primary season. However, a new CNN poll released Wednesday showed Sen. Bernie Sanders knocking him out of the top spot.

Polling out of Iowa has seen a seesaw between Biden and Sanders, with the Vermont senator storming ahead nearly two weeks ago and Biden reclaiming first place just days later.