Everything Alexander the great, Attila the Hun, and Julius Ceasar did was legal because they made the law. Hamurabi also made law but a bit more compassionately.

It only seems everything that Trump does is legal but he is the opposite of criminals and warlords in a very ironic way.

In an effort to lock up Hillary, Trump made it a felony to destroy government records and files. Alas, his new law didn't apply to Hillary since she only destroyed copies and retained all files for the archive. The irony is that Trump can be indicted for a felony of his own created law.