Kelly Clarkson on Legal Weed, Supporting Hillary and Backgammon With Reba

In March, Kelly Clarkson’s Piece by Piece became the singer’s third LP to top the Billboard 200. It’s also the final installment in the six-album deal she signed with RCA Records immediately after winning American Idol’s first season, in 2002. Clarkson says she’s loving her new freedom. “Man, I have no…