Valerie Jarrett says she plans on staying in the White House until the end of President Barack Obama’s term. In an interview with The New York Times Magazine published Friday, the president’s senior adviser discussed politics and policy and made clear that she wants to stick around until Jan. 20, 2017. “Oh, my goodness, I intend to stay until the lights go off,” Jarrett said. “Why would I miss a single second of this?” Asked whether she ever gets surprised at people describing her influence over Obama in terms similar to those used to describe Vice President Dick Cheney’s in...