[DiogenesLamp]

And, it's not like Congress has an enforcement brigade of their own.

They do. They have a Sgt at Arms whom they can order to arrest the man. I believe they even have a congressional jail to hold him in.

[Mariner]

How many boots on the street does this office have?

Near as I can discern they can leverage the Capitol Police...but I don't think they could deploy a unit to arrest somebody in Indiana or Texas.

Or, know how to find the person.