India, July 24 -- US President Donald Trump pivoted swiftly Thursday to endorse Georgia Republican gubernatorial nominee Rick Jackson just days after his original candidate, Lieutenant Governor Burt Jones, was defeated in a primary upset, a rapid realignment that underscores both Trump's instinct to back winners and the high stakes of a Georgia race that polling shows could go either way.

After his initial endorsee for Georgia governor lost his Republican primary, Trump switched his allegiance to nominee Rick Jackson, calling on the GOP to unite behind the businessman in one of the nation's marquee gubernatorial contests.

In a Truth Social post, Trump praised Jackson as a "very successful Businessman and Entrepreneur" and urged Republic...