President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE bragged about his prowess in defeating the Republicans who oppose him, saying at an Ohio rally that he “destroys” the careers of GOP politicians who dare defy him.

“How do you get 100 percent of anything? We always have somebody who says ‘I don’t like Trump, I don’t like our president, he destroyed my career,' ” Trump said.

“I only destroy their career because they said bad things about me and you fight back and they go down the tubes and that’s OK,” he added.

Trump says he only "destroys careers" of anti-Trump Republicans because "they said bad things about me." pic.twitter.com/Hj5XGaKx9N — Aaron Rupar (@atrupar) August 4, 2018

Trump didn't name names, but he's on a winning streak in GOP primaries, as candidates he's backed have repeatedly defeated those he sided against.

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The most notable example was Rep. Mark Sanford Mark SanfordOn The Money: Business world braces for blue sweep | Federal Reserve chief to outline plans for inflation, economy | Meadows 'not optimistic' about stalemate on coronavirus deal Trump critic Sanford forms anti-debt advocacy group Republicans officially renominate Trump for president MORE, the former South Carolina governor who lost a GOP primary for reelection to his House seat earlier this summer.

Trump tweeted his opposition to Sanford on election day, needling him over a past controversy in which he disappeared from public view to, according to his staff, hike the Appalachian Trail. Sanford, married at the time, was actually in Argentina seeing a woman with whom he was having an affair.

Trump also recently backed Georgia Secretary of State Brian Kemp over Lt. Gov. Casey Cagle in a GOP primary, and saw Kemp win.

But Trump hasn't always been on the winning side. He backed former Sen. Luther Strange Luther Johnson StrangeSessions hits back at Trump days ahead of Alabama Senate runoff The biggest political upsets of the decade State 'certificate of need' laws need to go MORE (R-Ala.) last year but saw Roy Moore Roy Stewart MooreRoy Moore sues Alabama over COVID-19 restrictions Vulnerable Senate Democrat urges unity: 'Not about what side of the aisle we're on' Sessions hits back at Trump days ahead of Alabama Senate runoff MORE pull off a primary victory.

Still, the recent successful primary picks have put Trump's stamp further on the GOP, suggesting it has become Trump's party.

Two GOP senators who have repeatedly criticized Trump, Jeff Flake Jeffrey (Jeff) Lane FlakeHow fast population growth made Arizona a swing state Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden MORE of Arizona and Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE of Tennessee, are also not running for reelection.