Mitt Romney needs Sarah Palin to jump into the race, Chris Cillizza of The Washington Post observed today. Not gonna happen, said John Cornyn, who was in Houston this week to talk about an EPA ruling that he contends will cause utility bills to go up. “I’d be kind of surprised if the presidential field expands any more,” the senator said after a press conference at the Ripley House on the East Side. “I think it’s pretty much set.” If Romney’s going to be the GOP nominee, Cillizza writes, he needs to fracture Rick Perry’s tea party coalition, even as...