Bernie Sanders officially kicked off his presidential campaign this week to much fanfare in his home state of Vermont. But if he hopes to prove his mettle against Democratic front-runner Hillary Clinton, he is going to have to do well in the neighboring, but very different, state of New Hampshire.
The U.S. Senate meets for a special session on Sunday to deal with a national security program that is set to expire on June 1. The program has allowed the National Security Agency to collect and store a vast amount of phone records. NPR explains what is at stake and what the Senate is expected to do this weekend.