On the debate stage and on the campaign trail, former New Jersey Gov. Chris Christie has loudly urged other Republicans to focus their attention not on their own internal squabbling but on Donald Trump’s comeback bid. During an interview Tuesday on “Politically Georgia,” Christie also repeatedly brought up another GOP figure: Gov. Brian Kemp, a longtime ally who defeated a Trump-backed candidate last year and hasn’t yet taken sides in the 2024 race. "I’m proud to be a Brian Kemp Republican. I was with Brian Kemp in 2018 when he ran the first time. I was with him in the...