If Scott Brown can come close in Massachusetts, or even win, isn’t it within the realm of possibility that Republicans could pick up a Senate seat in . . . Indiana? Sen. Evan Bayh has been popular, but his popularity is based on a reputation for moderation that his vote for the Reid bill can be used to undermine. And it looks like this may be a good year for Republicans. A few weeks ago, Bill Kristol suggested that Rep. Mike Pence (R., Ind.) run against Bayh. If Brown wins, it ought to give him a little encouragement.