The Secret Service is investigating how man the who shot Trump got as close as he did

The U.S. Secret Service is investigating how a gunman armed with an AR-style rifle was able to get close enough to shoot and injure former President Donald Trump at a rally Saturday in Pennsylvania, a monumental failure of one the agency's core duties.

…

An Associated Press analysis of more than a dozen videos and photos taken at the Trump rally, as well as satellite imagery of the site, shows the shooter was able to get astonishingly close to the stage where the former president was speaking.

The roof was less than 150 meters (yards) from where Trump was speaking, a distance from which a decent marksman could reasonably hit a human-sized target. For reference, 150 meters is a distance at which U.S. Army recruits must hit a scaled human-sized silhouette to qualify with the M16 assault rifle in basic training. The AR-15, like the shooter at the Trump rally had, is the semi-automatic civilian version of the military M16.

…

…FBI Special Agent in Charge Kevin Rojek said it was "surprising" that the gunman was able to fire at the stage before he was killed.