Don't be stupid, local and State governments are more than capable of upholding the laws. The Federal Government is supposed to protecting the entire country from attacks by foreign powers and terrorists. Does it look like they are directing traffic or handing out parking tickets?? No, it looks like a mob of thugs with clubs beating the living hell out of people. They are so excited they are practically skipping around the Navy Vet looking for an opportunity to break a few bones. So ponder this, if the unarmed Navy Vet was such a danger, why wasn't he arrested or detained. They were not there to uphold any law at all, they wanted to crack heads and they indulged themselves. What they were hoping for was to spark a riot, because if the protesters fought back, then they could feel justified shooting people. How valiant.
Trump doesn't get to send in Federal employees (maybe prison guards, perhaps border patrol, who knows) to maim people because you don't like their 'perceived' political beliefs. Maybe you get a lift when you see other citizens being beaten but you should think again. If this happens to other Americans nobody is safe..not even you