Al Capone was investigated for years. The FBI never could get him on anything criminal. They did, however, finally nail him on tax evasion.
So my question to any attorneys on this site is how long is an unconfirmed citzen of the United States allowed to assume a false identity and trespass?
If you can't get him for the big stuff, use the small laws. He should have been vetted by the Democrats before running for Senator and wasn't. He was supposed to be vetted by the CIA and wasn't.