Former Vice President Joe Biden appeared confused on Monday as to what Florida city he was in during a campaign rally for Sen. Bill Nelson (D., Fla.) and Democratic gubernatorial candidate Andrew Gillum.

Biden was speaking at the University of South Florida in Tampa when he misspoke about being in Miami, according to a video flagged by by the NTK Network. Miami is 280 miles away from Tampa.

"It’s great to be with you all. You know Bill, we have a rule back in Delaware that you all don’t have here in Miami, in Florida, that is," the 75-year-old Biden said. "If you keep an audience standing more than 15 minutes, you lose them."

Biden traveled to Florida in an effort to boost voter turnout for Florida Democrats, including Gillum and Nelson.

"I think there's something different about this election," Biden told the crowd. "I really mean this. Let me get to the point. This election is bigger than politics. For real. This goes well beyond. You will never have voted in an election that's more important."

Biden has been floated as a potential 2020 presidential candidate; his tour through Florida doubles as an opportunity to boost voter turnout during the 2018 midterms and to test the waters for a potential presidential campaign run.

"American values are being shredded. We have a president who has put his own selfish interest ahead of the country," Biden said.

Nelson faces a fierce challenge for his Senate seat from Florida's current governor, Rick Scott. In the race for governor, Gillum is in the midst of another close race with Republican Rep. Ron DeSantis.