For a few weeks, I've been receiving unsolicited emails from a trio of Arizona politicians with a website at robson-mcclure-stump.com. Now, without warning, the messages have begun advertising mcclure-stump.com. There's no mention of poor Robson, not a whisper of what might have happened to him. Did he fall out with his colleagues? Did he defect to the Democrats? What could he have done to justify erasing him so abruptly from the pages of the Internet?