There are certain budgetary contingencies in place purposed for additional personnel beyond what is budgeted for in a given year. This is why the Sheriff asks the Governor for assistance... he doesn't have enough in his budget to adequately staff for any event that may occur, as a result of the gathering.
This has a way simpler explanation than you guys are making it out to be. But ya sure protect the Nazis... I'm curious though what would they need protection from? From people who would drag them in to the street and brutally murder them for what they believe? That sounds a little ass backwards don't you think?
Here's a thought. White supremacists are a dying breed. There would be no need to "re-brand" themselves as "alt right" or "alternative right" if they weren't losing numbers. They have to hide and disguise their message of hate because any direct engagement would be rejected by the majority of the white population.
You act like us ignorant white folk are so easily swayed... you have to be a special kind of stupid to adopt the symbol of a party that actually LOST a war, and was/is hated by people throughout the world for the atrocities committed against mankind.
I can't think of a better way to handle that small group of ignorant retards, than to simply ignore them... and let them die off.