If you followed supervisorial candidate Mike McGuire’s regular reports on Twitter and Facebook, you know this much: The guy is tireless. For the last several months, he has been everywhere in the Fourth District. The returns tonight show that hard work paid off.

Political people like to come up with fancy explanations for the outcomes of elections. But sometimes it’s not complicated at all. Debora Fudge ran an admirable campaign, but McGuire and his supporters were relentless. “What I can say,” he told columnist Chris Smith earlier today, “is that we worked our tails off.”