United States Secret Service
U.S. federal law enforcement agency
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| February 11 2025 | Nikita Casap, a 17-year-old follower of the Order of Nine Angles, was accused of plotting to assassinate President Trump as part of a plan to instigate a race war, after murdering his mother and stepfather. |
| January 16 2025 | Sai Varshith Kandula was sentenced to eight years in prison for his White House attack attempt, during which he expressed admiration for the Third Reich and intentions to 'seize power'. |
| September 2024 | An Iranian official ordered agents Farjad Shakeri, Carlisle Rivera, and Jonathon Loadholt to formulate a plan to kill Trump before the election. They were charged with murder-for-hire and related offenses. |
| September 15 2024 | Ryan Wesley Routh was spotted by a Secret Service agent holding an SKS-style rifle on Trump's private golf course in West Palm Beach, Florida. After a 12-hour standoff and a brief chase, he was detained without incident. His trial is set to begin on September 8, 2025. |
| July 2024 | Counter Sniper Team shot and killed Thomas Matthew Crooks during an attempted assassination of Donald Trump at a campaign rally in Butler, Pennsylvania. |
| July 12 2024 | Asif Merchant, allegedly an Iranian Revolutionary Guard Corps agent, was arrested for a plot to kill Trump at a rally in retaliation for Qasem Soleimani's assassination. He had paid federal agents posing as hired assassins. |
| May 22 2023 | Sai Varshith Kandula, a 19-year-old from Missouri, attempted to breach White House security by driving a rented box truck into a barrier. He was arrested after being found with a Nazi flag and openly stating his intention to 'kill the president' and 'seize power'. |
| May 2022 | PSS headquarters relocated to the Presidential Office Building following the president's office move to the defense ministry building. |
| May 24 2022 | Shihab Ahmed Shihab Shihab, an Iraqi citizen, was arrested for plotting to assassinate former President Bush. He was accused of planning the assassination due to anger over the Iraq War, and had conducted surveillance of the Bush home in Dallas and the George W. Bush Institute. Shihab claimed connections to ISIS members and had entered the US illegally in September 2020. |
| October 2020 | Barry Croft Jr was reported to have included Trump in a list of politicians he wanted to kill, as part of a broader kidnapping plot. He was later sentenced to 19 years in prison in December 2022. |
| September 2020 | Ricin-containing letters addressed to Trump were intercepted by Secret Service. Canadian woman Pascale Ferrier was arrested and sentenced to 22 years in prison for sending poisoned letters to Trump and law enforcement officials. |
| April 20 2019 | Larry Mitchell Hopkins, a member of the United Constitutional Patriots militia, was arrested after allegedly confessing to a planned assassination plot targeting Obama and Hillary Clinton. |
| October 2018 | A package containing a pipe bomb was sent to Obama's home in Washington, D.C., which was intercepted by the Secret Service. |
| October 2018 | A pipe bomb addressed to Hillary Clinton was intercepted by the Secret Service at their Chappaqua, New York home. Bill Clinton was present during the interception. The package was sent by Cesar Sayoc, who was captured two days later and sentenced to 20 years in prison. |
| October 1 2018 | An envelope laced with ricin was sent to Trump, discovered by mailing facilities. William Clyde Allen III was later arrested and charged with mailing threats against the president. |
| November 2017 | An Islamic State-affiliated man was arrested in Manila, Philippines for planning to assassinate Trump during the ASEAN Summit, after being detected by Secret Service prior to Trump's arrival. |
| September 6 2017 | Gregory Lee Leingang attempted to assassinate President Donald Trump in Mandan, North Dakota by stealing a forklift and trying to flip the presidential motorcade. He was arrested, pleaded guilty, and sentenced to 20 years in prison. |
| February 2015 | Three men from New York City were arrested by the FBI after discussing plans to kill Obama and join the Islamic State of Iraq and the Levant with undercover agents. |
| June 2013 | Two white supremacists, Glendon Scott Crawford and Eric Feight, were arrested for a plot involving a homemade 'radiation gun', with Crawford suggesting using the device against President Obama among other targets. |
| May 2013 | Ricin-laced letters were sent to Obama and New York City mayor Michael Bloomberg, threatening to kill anyone attempting to take away the sender's guns. The letters were sent by actress Shannon Richardson, who attempted to frame her husband Nathan for the crime. |
| April 2013 | An attempt was made to assassinate Obama when a letter laced with ricin toxin was sent to him. |
| October 2012 | Mitchell Kusick, a mentally ill man from Westminster, Colorado, was arrested after confessing to his therapist that he intended to kill Obama with a shotgun at a campaign stop in Boulder, Colorado. |
| November 2011 | Oscar Ramiro Ortega-Hernandez, a 21-year-old influenced by conspiracy theories, traveled from Idaho and fired several rounds from a semi-automatic rifle at the White House, breaking a window. He was subsequently sentenced to 25 years in prison. |
This contents of the box above is based on material from the Wikipedia articles Presidential Security Service (South Korea), United States Secret Service Uniformed Division & List of United States presidential assassination attempts and plots, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.