Former President Trump is opening up his wallet to save Herschel Walker, whose Senate campaign has been reeling from allegations he paid for a woman to abort his child. Trump endorsed the one-time NFL star early in Georgia’s GOP Senate primary and Walker’s showing next month will be a big test of the former president’s continued influence with voters. Make American Great Again Inc., a Trump-backed Super PAC, injected $750,000 into ad spending in the Peach State in support of Walker, Politico reported Friday. An ad for the group now airing leans heavily into culture war issues and attacks against...