Sen. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.) denied that his campaign was taking shots at other candidates on Tuesday just days after a fundraising email sent by Booker's team appeared to criticize a fellow Democrat running for the party's nomination.

Booker was questioned by reporters on the campaign trail after a fundraising email sent over the weekend referenced former Rep. John Delaney John DelaneyCoronavirus Report: The Hill's Steve Clemons interviews Rep. Rodney Davis Eurasia Group founder Ian Bremmer says Trump right on China but wrong on WHO; CDC issues new guidance for large gatherings The Hill's Coronavirus Report: Kansas City Mayor Quinton Lucas says country needs to rethink what 'policing' means; US cases surpass 2 million with no end to pandemic in sight MORE's (D-Md.) decision to donate $11 million to his own White House bid.

ADVERTISEMENT

"Friend, this weekend, we found out that one of the other Democrats in this race has given over $11 million of his own money to his campaign. Self-funding is something Cory just can't and would never do," the email obtained by CNN read.

Booker responded on Tuesday to a reporter who questioned him about the line, claiming to not know about it.

"I'm not even sure what you're talking about, because again we are not taking swipes at other candidates," Booker told reporters. "The reality is that we need to have a Democratic Party that shows how you run campaigns in this Democratic Party field by respecting people you're running against, and so I'm going to continue to conduct myself in that manner."

Michael Starr Hopkins, a press secretary for the Delaney campaign, responded to Booker in a statement to CNN that mocked Booker's low performance in recent polls of the 2020 primary contest, which have shown both Booker and Delaney near the bottom of the large crowd of Democratic contenders vying for the nomination.

"If I had Booker's numbers, I'd go negative, too," Hopkins told CNN.

Booker led Delaney in a recent Iowa poll that showed the New Jersey senator holding the support of 3 percent of respondents in the state which holds the first caucuses of the primary contest.