Updated on Sept. 2 at 9 a.m.

U.S. House candidates in four Massachusetts districts were competing Tuesday for the chance to represent their party in the November general election. In the 1st Congressional District, U.S. Rep. Richard Neal of Massachusetts held off Democratic challenger Alex Morse after an acrimonious campaign that included allegations of sexual misconduct leveled at his younger opponent. In the 6th Congressional District, U.S. Rep. Seth Moulton, a Marine Corps veteran who saw combat in Iraq and mounted a brief campaign for president last year defeated two fellow Democratic challengers. In the state’s eastern 8th Congressional District, longtime Massachusetts Rep. Stephen Lynch defeated infectious diseases expert Robbie Goldstein.

U.S. Rep. Joe Kennedy III fell short in his bid to unseat U.S. Sen. Edward Markey in Tuesday's hard-fought Democratic primary. The race for Kennedy’s House seat in the 4th Congressional District remained too close to call, with just over 100 votes separating Democrats Jesse Mermell and Jake Auchincloss. Republican Julie Hall, an Air Force veteran, defeated David Rosa on the GOP ticket. The primary went smoothly despite nearly 1 million voters casting mail-in or drop-off ballots amid the coronavirus pandemic — an unprecedented crush that some feared might lead to delays in counting votes.