Last night’s GOP presidential debate featured eight candidates, none of them named Donald Trump, but it was the former president who won the night. His aggregate lead in the national polls is titanic—he is more than 40 points ahead of the fast-fading Ron DeSantis—and nothing that happened on the debate stage in Milwaukee will change that. Those who watched the debate will, for a few hours anyway, remember certain moments, good and bad, and take away certain impressions, positive and negative. For my part, I thought two former governors, Nikki Haley and Chris Christie, were the most impressive. Haley was particularly strong on foreign policy, lacerating Vivek Ramaswamy for his stances on Ukraine (hand it over to Russia), Israel (cut funding), and China (abandon Taiwan). “You don’t do that to friends,” the former United Nations ambassador said, attacking his stance on Israel. “What you do instead is you have the backs of your friends.” She added, “You have no foreign-policy experience, and it shows!” Haley also called out Republicans for promising in campaigns to cut …