For ages, athletes have been judged by their importance to their team’s bottom line, their popularity with fans, and their win-loss record against better opponents. Today on The Gist, we apply those same rubrics to the dozen or so politicians likely to tangle in the Republican primary. Our guest is Harry Enten, senior political writer and analyst for FiveThirtyEight. For the Spiel, you just gotta watch The All-Star Party for “Dutch” Reagan. Today’s sponsors: Squarespace.com. Get a free trial and 10 percent off your first purchase when you visit Squarespace.com and enter offer code GIST. And The Great Courses. Save up to 80 percent off the original price when you go to TheGreatCourses.com/GIST.