 The U.S. Secret Service is facing intense scrutiny following the assassination attempt on the former president. Lawmakers on both sides of the aisle are asking how a sniper was able to get on a rooftop about 400 feet from the stage and fire shots at the former president. There are also questions about the size of the rally security perimeter and what efforts agents took to sweep the building where the shooter was found. President Biden said Trump had heightened Secret Service protection and a full review of the end will take place.