That's why I'm surprised. Murder I know is state, but "assassination of sitting federal officials" I'd think would be covered by federal law; there's a bunch of things you can do that are "covered" by a state crime that have a federal equivalent when either something crosses a state line, or federal officials are involved. It's especially surprising considering they apparently have made going after the family members of federal officials a crime, when going after the elected federal officials themselves in general isn't. Especially frustrating because I'm sure its against federal law to go after federal judges or FBI agents. But looking it up, even going after the sitting President isn't a particular federal crime...or at least wasn't until 1965, I'm not sure. Aaaaand now I'm on a list.