But the absence of a decisive endorsement has each candidate and their financial backers believing they can still win the Aug. 28 primary, leading to more than $7 million being spent in the race by outside groups alone.

Those kind of numbers and the intensity of the fight are worrying some Republicans as McSally, the candidate who is leading in the polls and the one believed to have the most general election appeal, is too mired in a primary fight to be focused on likely Democratic opponent, Rep. Kyrsten Sinema (D-Ariz.)…

“McSally has been spending precious treasure … against Ward, and is still trying to put Ward to bed,” said a Arizona Republican consultant, who requested anonymity to speak candidly about the race with The Hill. “It’s problematic that she’s not focusing on Sinema.”