“The Secret Service was only tasked with covering the grounds where Trump’s rally took place, with local police being recruited...”
The passive voice is really useful for passing the buck. So who did the “tasking” and the “recruiting”? Raise your hand.
"We have an integrated mission of protection and financial investigations to ensure the safety and security of our protectees, key locations, and events of national significance. We also protect the integrity of our currency and investigate crimes against the U.S. financial system committed by criminals around the world and in cyberspace."
"The Secret Service never works alone. We accomplish our full mission through robust partnerships with local, state, federal and international law enforcement agencies and the private sector."
Seems like they're "tasked" with the whole job.