WATCH: Trump takes aim at Newark and 'stupid' Cory Booker at Iowa rally

President Donald Trump speaks to supporters during a rally at the Des Moines International Airport on October 14, 2020 in Des Moines, Iowa. According to a recent poll Trump leads former Vice President Joe Biden by 6 points in the state.
President Donald Trump speaks to supporters during a rally at the Des Moines International Airport on October 14, 2020 in Des Moines, Iowa. According to a recent poll Trump leads former Vice President Joe Biden by 6 points in the state. Photo credit Scott Olson/Getty Images

NEW YORK (1010 WINS) -- President Trump took aim at Sen. Cory Booker Wednesday night at a campaign rally in Iowa, calling the New Jersey lawmaker "stupid" -- remarks which Booker

Trump had been tweeting about Booker earlier, calling him a "total loser" and "failed presidential candidate." The president began lashing out at Booker after he questioned Supreme Court nominee Amy Coney Barrett.

At Wednesday's Iowa rally, Trump said, "We're not gonna destroy the American dream for stupid people like Cory Booker ... yeah, he did a great job as mayor of Newark, New Jersey. That worked out. How's Newark doing?"

Booker shot back on Twitter, "Stop attacking Newark and do your damn job, @realDonaldTrump."

Booker's chief of staff Matt Klapper mocked Trump for calling the senator "stupid."

"That stupid Rhodes Scholar was a failed mayor who ushered in the greatest economic boom in generations, drove down crime & rooted out corruption. While we’re at it, Newark is a beautiful city with beautiful people, Cory lives there, and he’s not coming to destroy your suburbs," Klapper tweeted.

Featured Image Photo Credit: Scott Olson/Getty Images