What winning Wisconsin means for the candidates

Aired: 4/5/2016 | 0:05:40 | Clip
Wisconsin’s primary contest is the center of the political universe Tuesday night, with frontrunning candidates hoping to bolster their leads while trailing contenders fight to stay alive. Donald Trump, losing in statewide polls, spent the day attacking Sen. Ted Cruz, while Hillary Clinton turned her attention to the upcoming New York primary. John Yang joins Gwen Ifill for more.