Republicans in Massachusetts pick candidate to take on Sen. Elizabeth Warren

BOSTON (AP) — Attorney John Deaton won a three-way Republican primary to face off against incumbent U.S. Sen. Elizabeth Warren , who ran unopposed in Tuesday’s Massachusetts primary.

Deaton, a former U.S. Marine and cryptocurrency attorney who was born in Detroit, announced earlier this year that he would vie for the chance to challenge Warren as she runs for her third term in office. He defeated fellow Republicans industrial engineer Bob Antonellis and Quincy City Council President Ian Cain .

Relatively unknown in Massachusetts politics, Deaton faces a steep climb against Warren, a former Harvard law professor who has twice won a Senate seat but came in third in Massachusetts in her 2020 bid for president. She remains popular in the heavily Democratic state.

Deaton will face off against Warren in November.

Warren faced a competitive race in her first U.S. Senate bid in 2012, when she toppled Republican incumbent Scott Brown . She received more than 60% of the vote in 2018. Biden carried the state with 66% of the vote in the 2020 presidential race.

In eastern Massachusetts' 8th Congressional District, Rep. Lynch faces no primary challenge in his race for a 12th full term. Vying for the Republican nomination are videographer Rob Burke, health care worker and retired Verizon employee Jim Govatsos and bar owner Daniel Kelly.

Burke challenged Lynch in the 2022 general election, receiving 30% of the vote, compared to 70% for Lynch. Biden won this Boston-area district in 2020 with 67% of the vote. Lynch had about $1.1 million in the bank as of the end of June. None of his Republican challengers have reported raising any money.

Democrats have a lock on the Bay State’s congressional delegation, with both U.S. Senate seats and all nine U.S. House seats firmly in their column. They also hold lopsided supermajorities in both chambers of the state legislature, where all seats are up for election in November. Nonetheless, Republicans hope they can build on their toehold in the state Senate, where they flipped a vacant Democratic seat in 2023.