Agreed, but many would say the same for President Bush, who by his own admission 'occasionally' jumbles a few words when speaking. In his case, I think that many voters overlooked that in favor of his resolute determination in matters such as the War On Terror.
In the scenario of a President Arpaio candidacy, I think that many voters would be similarly impressed with his dedication to the rule of law....something that the Clinton "administration" didn't seem terribly interested in.