Candidates make errors, but elected officials cannot afford errors. Candidates are on the road, staff is planning events, writing press releases, posting to social media, complying with campaign finance requirements, courting volunteers, planting yard signs, negotiating over debates and planning media buys. Campaigns are already surrounded by mud in the trenches when yet more mud is being dumped on top of them by the opposition. That is especially true in Maryland when a Republican candidate is within striking distance and the favored tactic of race-baiting is used to shore up defenses. It happened to Ellen Sauerbrey in 1998 and to Larry Hogan in 2014.