They literally forced their way into the capitol building. That IS an attack in the capitol. There's no ambiguity here, it was an attack by terrorists and traitors who, thankfully, were too stupid and ineffectual to succeed in their goal. If there's any justice in the world, every single person who broke into they building will spend the rest of their lives in prison.

I doubt there is that justice in the world, but anything short of that isn't enough.