Most will lose. But some, Ms. Greene leading among them, have managed to win. Announcing victory Tuesday night, she said she was “just as fed up with what I saw from Republicans without wheels” as she was with Democrats.
“The Republican establishment was against me,” Mrs. Greene said. “The DC swamp is against me. And fake fake media hates my hatred. It is a symbol of honor. It is not for me to win. This is a referendum for each of us, for our beliefs. “
During his campaign, Mr. Cowan had adopted a slogan that summed up Ms. Greene̵7;s presentation to Republicans: “All conservatives, none of the embarrassment.”
“She is not conservative – she is crazy,” Mr Cowan told Politico before the run-off. “It deserves a YouTube channel, not a seat in Congress. It’s a circus move.”
Mr. Cowan was not alone in his assessment of Ms. Greene, who runs a construction company with her husband. She won a reprimand from Republican congressional leaders this year after videos on Facebook showed her making offensive remarks about Black people, Jews and Muslims. Representative Steve Scalise from Louisiana, the House minority whip, campaigned publicly for Mr. Cowan and helped him raise money.
The Republican Party, however, was by no means uniform in its opposition to Ms. Greene’s candidacy. The leadership remained officially neutral, and Mr. Trump’s only comment on the race came in the form of a congratulatory tweet after her strong showing at the start of the first round in June, when she nearly doubled Mr. Cowan’s vote.
Ms. Greene raised thousands of dollars from Representative Jim Jordan of Ohio, a high-profile Republican lawmaker and a favorite of the president and a political action committee to which she is affiliated, the Freedom House Fund. It also provided modest four-figure donations from political action committees linked to Mark Meadows, a former North Carolina representative who is now Mr. Trump’s chief of staff, and Koch Industries, a Republican financial backbone.