Sun Valley residents vote at the polling station located at Our Lady of The Holy Church on election day at the Sun Valley's Latino district, Los Angeles County, on November 6, 2012 in California.AFP PHOTO /JOE KLAMAR        (Photo credit should read JOE KLAMAR/AFP/Getty Images)
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Sun Valley residents vote at the polling station located at Our Lady of The Holy Church on election day at the Sun Valley's Latino district, Los Angeles County, on November 6, 2012 in California.AFP PHOTO /JOE KLAMAR (Photo credit should read JOE KLAMAR/AFP/Getty Images)
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(CNN) —  

Corey Stewart, the bombastic conservative who built his public image on championing Confederate symbols, won the Republican Senate nomination in Virginia.

Stewart, a member of the Prince William County Board of Supervisors, defeated state House member Nick Freitas and minister E.W. Jackson in Tuesday’s primary. Freitas conceded the race Tuesday night, according to local media.

He now faces Democratic Sen. Tim Kaine, the party’s 2016 vice presidential nominee and a heavy favorite for re-election, in November’s midterm election.

Republicans immediately expressed concern about the damage Stewart’s candidacy could do to the party and its other candidates.

“I am extremely disappointed that a candidate like Corey Stewart could win the Republican nomination for U.S. Senate,” former Virginia Republican Lt. Gov. Bill Bolling tweeted. “This is clearly not the Republican Party I once knew, loved and proudly served. Every time I think things can’t get worse they do, and there is no end in sight.”

Brian J. Walsh, a Republican strategist who has worked on Senate campaigns, tweeted: “Can we just skip past the part where the media focuses on all the idiotic, racist & embarrassing things Corey Stewart will say & do the next five months and just acknowledge Tim Kaine won his re-election tonight. And he has Stewart voters to thank for it.”

Republicans down the ballot now have to worry that that they’ve been saddled with one of the nation’s most controversial nominees in November. Republican Reps. Barbara Comstock, Scott Taylor and Dave Brat all face competitive races for re-election.

The National Republican Senatorial Committee, the Senate GOP’s campaign arm, declined to comment Tuesday night on whether it would support Stewart now that he’s won the party’s nomination.

Kaine’s campaign blasted Stewart in a statement minutes after news organizations declared Stewart the winner.

“A cruder imitation of Donald Trump who stokes white supremacy and brags about being ‘ruthless and vicious,’ Corey Stewart would be an embarrassment for Virginia in the US Senate,” said Kaine communications director Ian Sams.

In 2016, Stewart spent several months as the Virginia chairman of Donald Trump’s campaign, though the campaign fired him before the election for participating in a protest outside the Republican National Committee.

Stewart launched his Senate campaign after surprising – and alarming – national Republicans by winning 42.5% in last year’s gubernatorial primary against former Republican National Committee chairman Ed Gillespie.

He made Charlottesville’s push to remove its statue of Robert E. Lee the centerpiece of his campaign for governor, holding rallies for the monument and displaying Confederate flags while defending “heritage” at his events. At one point, he attended an Old South ball.

He attended a news conference with the leader of the white supremacist protest that later resulted in the death of a counter-protester in Charlottesville. And after that counter-protester, Heather Heyer, was killed in a hit-and-run, Stewart blamed the violence on “both sides.”

Conservative forces had aligned with Freitas in a bid to keep Stewart off the statewide ballot. The Koch brothers-backed group Americans for Prosperity, as well as Kentucky Sen. Rand Paul and Utah Sen. Mike Lee, invested hundreds of thousands of dollars in the race in the closing weeks. However, Stewart was a much better known contender.