He's been working hard, but is under the radar screen and avoiding big media events. His campaign people are making very targeted invitations to likely primary Republican voters.
Is Campbell a threat to DeLay? I find it hard to believe Mr. Campbell is going to win a primary against DeLay. But he doesn't have to win to do damage to DeLay. DeLay needs to win with a substantial number of votes, so he can demonstrate that he is the standard-bearer for his party.