While campaigning in Independence, Iowa, on the Fourth of July, Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE was confronted by a heckler who used one of President Trump's preferred nicknames for the former vice president.

A man at the Independence Day parade reportedly yelled "Sleepy Joe!" at the 2020 presidential hopeful.

Biden, 76, asked the man if he wanted to join him in a jog. The man declined, Washington Examiner reports. Biden was running across the parade route, according to reporters at the event.

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Others were cheering for Trump, though one reportedly yelled out "Where's your walker?"

NBC's Marianna Sotomayor tweeted some at the parade chanted for "Trump" as others were chanting Biden's name.

Biden ran back and forth between parade goers to shake as many hands as possible. You could hear some “Trump” chants when his supporters were chanting Biden’s name pic.twitter.com/mF6trbtIGs — Marianna Sotomayor (@MariannaNBCNews) July 4, 2019

Biden is one of 24 candidates seeking the Democratic Party's nomination to take on Trump next year.