DAVID MUIR: Tonight, nearly one year after the assassination attempt on then-candidate Donald Trump, we have learned that six Secret Service agents have now been suspended. Here's Pierre Thomas.
PIERRE THOMAS: Tonight, for the first time, the Secret Service revealing that it suspended a half dozen agents for their role in the, quote, “operational failure” that led to a nearly successful assassination of then candidate Donald Trump.
DONALD TRUMP: Take a look at what happened…
THOMAS: Sources telling ABC News those disciplined included supervisory-level and line agents, with suspensions ranging from 10 to 42 days without pay. In the wake of the attack, which killed firefighter Cory Comperatore and nearly cost Trump his life, the Secret Service faced withering criticism on Capitol Hill. Today, the agency again admitting to a stunning list of mistakes including a failure to coordinate with local authorities, a failure to secure the rooftop with a direct line of sight to Trump's podium. And anti-drone technology that malfunctioned.
RONALD ROWE: We could have maybe stopped him.
THOMAS: Tonight the agency announcing a number of reforms ranging from improved information sharing with local authorities, to better training and deployment of technology, David.
MUIR: Pierre Thomas live in Washington. Pierre, thank you.