‘A piece of paper they can’t even show us’: Trump says US-Iran deal is signed, but details are scant

On tonight's premiere of the 11th Hour with Ali Velshi, Trump says he's made a deal to end the war with Iran, but it's extremely short on details. Plus, Ali is at the big board with a preview of what's at stake in tomorrow’s primaries. And, the stories that remind us you can always find light despite a lot of darkness. David Rohde, Jason Stanley, Ben Rhodes, Keisha Lance Bottoms, and V Spehar join the discussion.