An internal investigation has confirmed security breakdowns that paved the way for an attempted assassination of Donald Trump, and revealed new failures.

Acting Secret Service Director Ronald Rowe angrily pushed back on senators’ calls to immediately fire or discipline key agents

One lawmaker said that “the American people are going to be shocked, astonished, and appalled” by the interval investigation’s findings.

Secret Service agents failed to ensure that proper safeguards were in place that could have obstructed Donald Trump’s would-be assassin’s view of the former president at the campaign rally in Butler,