Was apparently brought to light by a human source. Doesn't look like Crooks was connected to it, though with two social worker parents, anything is possible.
Secret Service and Trump were made aware of the plot before Saturday's rally. Imagine being briefed. Knowing about it. Then hearing those gunshots go off and see the chaos? What must have been going through all their heads, knowing that a plot was being attempted by the Iranians.
This was Reuters. Though they were quoting CNN. So basically they took the wishful thinking, the celebrating and cheerleading out of the article
WASHINGTON (AP) — A threat from Iran prompted the U.S. Secret Service to boost protection around Donald Trump before Saturday’s attempted assassination of the former president, though it appears unrelated to the rally attack, according to two U.S. officials.
Upon learning of the threat, the Biden administration reached out to senior officials at the Secret Service to make them aware, the officials said, adding it was shared with the lead agent on Trump’s protection detail and the Trump campaign. That prompted the agency to surge resources and assets. The officials spoke on the condition of anonymity to discuss sensitive intelligence matters.
The additional resources did not prevent Saturday’s attack at a Trump rally in Pennsylvania that left Trump injured to the ear, killed one rallygoer and severely injured two more when a 20-year-old with an AR-style rifle opened fire from a nearby rooftop.
“As we have said many times, we have been tracking Iranian threats against former Trump administration officials for years, dating back to the last administration,” said National Security Council spokesperson Adrienne Watson. “These threats arise from Iran’s desire to seek revenge for the killing of Qassem Soleimani. We consider this a national and homeland security matter of the highest priority.”