The conventional wisdom is that a candidate who feels comfortable about his or her odds of being elected, especially against a lesser-funded opponent, should avoid mentioning that opponent in public. If that's the case, then Rep. John Carter is getting a little worried, since he's taken to attacking Mary Beth Harrell in a letter to his supporters. Eye on Williamson has the details, plus Harrell's detailed response. Check it out.

UPDATE: Vince goes into waaaaay more detail about this.