In the month since the last Republican debate, former U.N. Ambassador Nikki Haley has been inching up in the national polls, while Florida Gov. Ron DeSantis has been slipping. Today, DeSantis leads Haley by just 3 points nationally, 13 percent to 10 percent. They are similarly close in Iowa, and Haley leads DeSantis by a sizable margin in New Hampshire and South Carolina. Former President Donald Trump is at 60 percent nationally and 40-some percent in the early states. There were already rumblings about Haley supplanting DeSantis as the alternative to Trump, and then, last Tuesday, Americans for Prosperity — the political arm of the Koch network — endorsed Haley, throwing its financial and organizing weight behind her. In this installment of the 538 Politics podcast, the crew considers whether Haley really has a shot of winning the Republican primary. They also dive into one of the intractable polling questions of our time: What’s the deal with issue polling? In other words, when pollsters ask voters about the issues motivating them or how they feel about a certain policy, what information are voters giving us? Learn more about your ad choices. Visit megaphone.fm/adchoices