SMYRNA, Ga. (AP) — Fresh off his commanding re-election victory, Georgia Gov. Brian Kemp on Saturday is playing the role of dutiful Republican soldier campaigning for the first time alongside Senate hopeful Herschel Walker after spending months steering clear of his ticket-mate. The joint appearance reflects how important Kemp’s broad coalition will be in determining whether Walker can unseat Sen. Raphael Warnock in a Dec. 6 runoff. The fact it occurs only now underscores the challenges that Walker, a celebrity athlete turned politician, has had appealing to many independents and moderate Republicans amid an intense focus on his rocky past.