GOP Senate hopefuls look to emerge from a summer slump, but fall recriminations are already flying

It was a summer of crises for Republican Senate hopefuls.

Celebrity TV doctor Mehmet Oz stumbled in his attempts to appeal to everyday voters in Pennsylvania and squandered a head start toward the general election while Lt. Gov. John Fetterman recovered from a stroke.

J.D. Vance struggled to raise money and disappeared from the airwaves in Ohio while Democratic rival Tim Ryan hammered a GOP-friendly message, raising alarm in a state former President Donald Trump won twice by healthy margins. 

In Wisconsin, two-term incumbent Ron Johnson was knocked on his heels, falling behind his opponent...