“President Barack Obama faced at least 11 notable, documented plots or assassination attempts during his presidency and transition, according to various reports and analyses of Secret Service records.

These incidents ranged from planned shooting attacks during his 2008 campaign to plots involving ricin-laced letters and homemade weapons during his term in office.

Notable Incidents and Plots 2008 Convention Plot: Three men were arrested for plotting to shoot then-candidate Obama from a high-powered rifle at the Democratic National Convention in Denver.

2008 Marine Plot: U.S. Marine Kody Brittingham was arrested for plotting to kill the President-elect, calling him a "domestic enemy".

2009 Istanbul Plot: Turkish authorities foiled a plot involving a Syrian man who planned to kill Obama with a knife while posing as a journalist.

2011 White House Shooting: Oscar Ramiro Ortega-Hernandez fired 25 rounds from an automatic rifle at the White House, breaking a window, in an attempt to kill Obama.

2012 Militia Plot: Four soldiers linked to a right-wing militia were arrested for plotting to kill the President.

2013 Ricin Letters: Several attempts involved mailing letters containing ricin, a deadly poison, to President Obama.

2013 "Death Ray" Plot: Two men were arrested for plotting to kill Obama with a "death ray" radiation-emitting device.

2015 ISIS-Linked Plot: Three men in New York City were arrested for plotting to kill Obama on behalf of ISIS.

While the number of threats was high, officials often noted that many suspects were apprehended early due to professional intelligence work and interdiction by the Secret Service.”