Reports are mentioning that a heckler was arrested for shouting during the State of the Union. I understand it's a relatively small charge, misdemeanor, but what rules/laws are in place that stop any Congresspersons from the same arrest? Marjorie Taylor Greene, for example, interrupted/heckled during the speech as well but was not arrested.
I assume there's some sort of protection for the Congresspeople, but am having trouble finding anything specific online.