U.S. Rep. Andy Kim delivers his campaign pitch to Burlington County Democratic voters on ahead of a vote to decide which candidate for U.S. Senate on Saturday, Feb. 24, 2024. Kim won the vote on Saturday but his odds look longer in populous northern counties where first lady Tammy Murphy has party leader support. AP photo/Mike Catalini)
New Jersey first lady Tammy Murphy delivers her campaign pitch to Burlington County Democratic voters ahead of a vote to decide which candidate for U.S. Senate on Saturday, Feb. 24, 2024. Murphy has the backing of party leaders in populous northern counties but lost Saturday's vote in Burlington, one of the three total conventions she's lost so far. (AP photo/Mike Catalini)
FILE - Rep. Andy Kim, D-N.J., speaks to voters in Jersey City, New Jersey, on Feb. 23, 2024. Kim is winning local Democratic Party contests for ballot position and support against first lady Tammy Murphy in their contest to succeed incumbent Bob Menendez, who's been indicted on federal corruption charges. (AP Photo/Ted Shaffrey)