The next logical step is asking why Ray Epps - who committed multiple Federal crimes, has to date, faced no charges of any kind.
Solicitation to attack a target - that target being the U.S. Capitol building. The process of attacking the target would also disrupt a legislative process - which is also a Federal crime. Trespassing on Federal property, intimidation/threats toward Federal law enforcement officers, engaging in the assault of Federal Law Enforcement officers . . .