The Last Word with Lawrence O'Donnell 04/12/16

On the Trail: Paul Ryan says don't look at me

One week before the New York primaries, John Kasich has had it with the name-calling as Ted Cruz and Donald Trump keep going after each other. Meanwhile, Bernie Sanders and Hillary Clinton keep trading jabs one week before the New York primary. MSNBC's Lawrence O'Donnell shares the campaign highlights. ... more Duration: {{video.duration.momentjs}}