Smells like horseshit, they probably get pranks like that dozens of times a year. Why wouldn't they just call up Secret Service and the Capitol Police officers all around the building to find out instead of sending a swarm of first responders?

Smells like horseshit, they probably get pranks like that dozens of times a year. Why wouldn't they just call up Secret Services and the Capitol Police officers all around the building to find out instead of sending a swarm of first responders?