Whether it was literally a Congressman, or one of his hired thugs, same thing. It’s a criminal enterprise against the people, masquerading as a government.
They even have catchy patriotic slogans.
I may be wrong, but I think the armed Capitol Police who stand inside the Senate and House chambers dress in black suits like the Secret Service. So he may have been a Capitol Policeman, not a congressman. Oh, excuse me: a congresshuman of indeterminate gender identity.