President Donald Trump has faced security threats since beginning his national political career in 2016. The incidents included armed confrontations, a vehicle breach, a ricin-laced letter, two alleged assassination attempts and a 2026 arrest near a California golf club. Responses have involved the Secret Service, local police and federal investigators.
The most serious incident occurred in Butler, Pennsylvania, in July 2024, when a gunman fired from a rooftop outside the rally security perimeter. Other cases remain in court, including allegations involving a White House Correspondents’ Association dinner and a man arrested before Trump’s scheduled visit to a California golf club.
| 1) | Early campaign incidents raised security concerns |
| 2) | A ricin letter expanded the range of threats |
| 3) | The Butler shooting became the defining attack |
| 4) | Golf-course and dinner incidents tested protection |
| 5) | The latest California arrest remains unresolved |
Early campaign incidents raised security concerns
On June 18, 2016, in Las Vegas, British national Michael Steven Sandford tried to take a police officer’s handgun while Trump spoke at a campaign rally. Investigators said Sandford intended to kill Trump and had practiced with a rented handgun the previous day. Officers stopped him, and no one was injured. Sandford pleaded guilty to federal firearm and disruption charges and received 12 months and one day.
On September 6, 2017, Gregory Lee Leingang drove a stolen forklift into a restricted area near the planned motorcade route in Mandan, North Dakota. Prosecutors said he intended to overturn the presidential limousine and kill Trump. The forklift became stuck behind a gate before the motorcade arrived. Leingang fled, was arrested and pleaded guilty to federal charges.
A ricin letter expanded the range of threats
In September 2020, Pascale Ferrier mailed a threatening letter containing homemade ricin to Trump at the White House. It was intercepted at a mail-sorting facility, so Trump was not exposed. Ferrier also sent ricin letters to eight law enforcement officials in Texas.
Ferrier was arrested at the U.S.-Canada border with a loaded gun and hundreds of rounds of ammunition. She pleaded guilty to federal biological weapons violations and received a 262-month sentence. The case showed that threats could involve weapons, toxins and the postal system.
The Butler shooting became the defining attack
On July 13, 2024, Thomas Matthew Crooks opened fire from a rooftop outside the security perimeter of a campaign rally in Butler, Pennsylvania. Trump was wounded in the right ear. Rally attendee Corey Comperatore was killed, while David Dutch and James Copenhaver were seriously injured.
A Secret Service counter-sniper killed Crooks seconds after the shooting began. The attack prompted scrutiny of the rally’s security arrangements, including the rooftop location and event perimeter. It remains the most consequential attack in the sequence because gunfire reached Trump before a large public audience.
Golf-course and dinner incidents tested protection
On September 15, 2024, Ryan Wesley Routh concealed himself in brush along the fence of Trump’s golf course in West Palm Beach, Florida, while Trump played nearby. A Secret Service agent spotted Routh’s rifle and fired. Routh fled without shooting. Authorities recovered a loaded scoped rifle, armor plates, a camera and other evidence. A federal jury convicted him of attempted assassination and related charges in September 2025. A judge sentenced him in February 2026 to life plus seven years.
On April 25, 2026, prosecutors alleged that Cole Tomas Allen entered the Washington Hilton during the White House Correspondents’ Association dinner with a shotgun, pistol and knives. Authorities said he rushed a checkpoint and fired, hitting a Secret Service officer in the chest. The officer’s ballistic vest prevented serious injury. Trump, first lady Melania Trump, Vice President JD Vance and other officials were evacuated. Allen pleaded not guilty, and the case remains pending.
The latest California arrest remains unresolved
On August 2, 2026, authorities arrested 38-year-old Jeanine John Taele near Trump National Golf Club in Rancho Palos Verdes, California. Investigators said Taele had monitored security-planning activities days before Trump’s scheduled visit. They reported finding an illegally modified AR-platform rifle, a 1911 .45-caliber pistol, an AR-platform upper receiver, body armor, high-capacity magazines, large quantities of ammunition, two radio-signal devices and notebooks containing concerning statements.
Taele, a Downey resident, pleaded not guilty to four criminal charges. A Los Angeles County judge set bail at $250,000, prohibited weapons possession and entry to the golf club, and barred him from leaving California. The Secret Service said it does not discuss specific protective-intelligence matters but investigates activity that could indicate a threat or directed interest toward someone under its protection.
| No. | Key Point |
|---|---|
| 1 | Threats against Trump have been recorded from 2016 through 2026. |
| 2 | The 2024 Butler shooting killed one attendee and injured three people, including Trump. |
| 3 | Some suspects were convicted, while the newest cases remain pending. |
| 4 | Responses have involved federal agents, local police, screening and advance surveillance. |
Summary
Threats against Trump have varied from attempted access to weapons and vehicles to toxic materials and firearms. The Butler shooting demonstrated the consequences of a perimeter failure, while later incidents underscored the demands on protective agencies. Some cases ended in convictions and lengthy sentences, but the 2026 prosecutions remain unresolved.
Frequently Asked Questions
When did the documented sequence begin?
The timeline begins with the June 2016 campaign rally incident in Las Vegas involving Michael Steven Sandford.
What happened during the Butler attack?
On July 13, 2024, Thomas Matthew Crooks fired from a rooftop outside the rally perimeter, wounding Trump, killing Corey Comperatore and seriously injuring two others before being killed by a counter-sniper.
What is known about the latest arrest?
Authorities arrested Jeanine John Taele near Trump National Golf Club in California on August 2, 2026. He pleaded not guilty after authorities alleged he monitored security activity and possessed firearms, ammunition, body armor and other items.
