LITTLE ROCK, Ark. (AP) — Sen. John Boozman won the Republican primary in Arkansas on Tuesday, fending off challengers on the right after relying heavily on his endorsement from Donald Trump, conservative groups, and the state’s top GOP figures.

Boozman’s race was a test of the former president’s influence in an extremely red state, though it hadn’t garnered the national attention other top races like Senate campaigns in North Carolina, Ohio, and Pennsylvania had.

Natalie James, a real estate agent from Little Rock, won the Democratic primary Tuesday for the right to challenge Boozman in the fall. Boozman is heavily favored in November in Arkansas, which hasn’t elected a Democrat to the Senate since 2008.

A soft-spoken eye doctor who has served two terms in the Senate, Boozman adopted a more combative tone in campaign ads that touted the support of Trump and other GOP figures. Former White House press secretary Sarah Sanders, who won the Republican nomination for governor Tuesday, and fellow Sen. Tom Cotton recorded ads that played heavily in the state backing Boozman.

“They want somebody who’s going to go to Washington and represent them, somebody that is a doer, not just a talker,” Boozman told The Associated Press after his win Tuesday night.

The lawmaker faced an onslaught of attacks from a super PAC funded by a shipping executive backing former NFL player Jake Bequette’s effort to unseat Boozman. Conservative activist Jan Morgan and pastor Heath Loftis also sought the Republican nomination. One of the ads by the pro-Bequette group referred to Boozman as “Biden’s favorite Republican.”

Boozman’s rivals labeled him a RINO — Republican In Name Only — even though the incumbent voted more than 91% of the time with Trump, according to the website FiveThirtyEight. Boozman has voted with Biden 34% of the time, according to FiveThirtyEight’s tally, and his challengers say that is too often.

Boozman’s rivals criticized him over his decision to not challenge Biden’s win in the presidential election, despite Trump’s lies about a stolen election. They also criticized Boozman saying last year that Trump bore “some responsibility” for the violent Jan. 6 insurrection at the U.S. Capitol, though Boozman voted to acquit Trump in the impeachment trial over the riot.

Boozman said he remains committed to Trump and that he doesn’t hold him directly responsible for Jan. 6. He also said he would support the former president if he runs again in 2024.