“What they can’t do is arrest and prosecute.”
___________
You are so full of crap.
“In the U.S. and its territories, FBI special agents may make arrests for any federal offense committed in their presence or when they have reasonable grounds to believe that the person to be arrested has committed, or is committing, a felony violation of U.S. laws.”
“Federal law gives the FBI authority to investigate all federal crime not assigned exclusively to another federal agency (28, Section 533 of the U.S. Code). Title 28, U.S. Code, Section 533, authorizes the attorney general to appoint officials to detect and prosecute crimes against the United States.“
Members of Congress are not FBI agents, smart guy.