When Trump talks about the Deep State, he is talking about men and women who swore their allegiance to the United States and the US Constitution. Men and Women who swore to follow the "rule of law". Trump is disappointed allegiance wasn't sworn to him over country. This is why Trump is angry. When he says the Department of Justice is his plaything to do with as he wants, he is showing a profound lack of understanding of the Constitution. He simply doesn't understand why he wasn't elected king or doesn't have the power to kill the way Vladimir Putin does. Trump doesn't understand why he isn't above the law. But the thing he doesn't understand the most is why those in the government won't swear a "loyalty pledge" to him. This is why Republicans are demanding a "purge". To get rid of anyone they imagine doesn't share their political ideas. This is why we are entering the most dangerous time in our nation's history since the Civil War.