President Donald Trump’s appearance at this year’s Super Bowl was billed by everyone from his most ardent fans to the mainstream media as nothing short of “historic,” which it was — he is the first sitting President to ever attend the event. Missing from all this storytelling, however, is the main reason why this was a never-before-seen event. It is incredibly expensive, on a federal, state, and local level, for the President to appear anywhere — and it is our tax dollars that pay for it all. Of course, unless you’re part of the teams who allocate taxpayer dollars and…