… With (Bernie) Sanders’ Iowa visit coinciding with Hillary Clinton’s much-anticipated return to the state, some Democrats have wondered if the senator’s presidential ambitions are merely an elaborate display of effigy-burning—an attempt to move Clinton and the center of gravity of the entire party to the left. Not so, the senator says. “If I run, I would like to win. That’s why I would run,” he told msnbc Thursday. He’s not interested in being a protest candidate, he insists. Sanders realizes it’s a long shot. “For me to win, it would require a grassroots effort on the part of literally...