Fox News article with quotes. Read the quotes.
The Second Amendment is about killing tyrants, their soldiers, and their police. Hannity doesn't get that and a lot of Americans have forgotten that.
Disclaimer: Armed protests at capitol buildings have great potential to backfire. Exhibit A are the Black Panthers and California Mulford Act that banned open carry. So armed protester beware. You might just push scared pols into banning whatever you've just done legally.
Yet I believe we are rapidly approaching the point where we have to throw tea in to the harbor. Firearms at these rallies remind politicians that the citizenry has the ultimate veto over unconstitutional and tyrannical governance.