The retirement of Sen. Ben Nighthorse Campbell in Colorado is a welcome development for Democrats, who can put forward an attractive candidate to replace him in Rep. Mark Udall. One of my favorite politicians, Gov. Bill Owens, is going to come under tremendous pressure from the White House to run, on the thinking that he’s the only Republican who can enter the race as a strong frontrunner. If he gets in, the GOP probably keeps the seat–and conservatives add one of their brightest stars to the Senate roster. If he doesn’t, it becomes a tossup. Many people I know believe that Owens should be setting his sights higher than the Senate, a place that so often forecloses other futures. He has a huge decision to make.