A Secret Service agent assigned to Barack Obama was breaching security while leading a double life, according to a memoir by the agent's former girlfriend.

"Without reform" to the Secret Service "another Butler can and will happen again," DHS independent review finds

Secret Service develops guide for state and local law enforcement to prevent "targeted violence"

A Secret Service agent is under investigation for an alleged sexual misconduct incident with an aide of Vice President Kamala Harris, the campaign said.

The 405-0 House vote follows a second Trump assassination attempt.

Issues with a host of communications and technical difficulties with drone capabilities plagued the U.S. Secret Service at the rally in Butler, Pennsylvania

Trump’s golf course protection worked as intended amid a second assassination attempt.

Former President Donald Trump praised the Secret Service's actions in stopping an alleged assassination attempt Sunday during a phone conversation with ABC News Tuesday

Steve Witkoff -- a friend of former President Donald Trump -- told "Good Morning America" Secret Service were "exemplary" during Sunday's apparent assassination attempt.

President Biden said the Secret Service "needs more help" as he briefly addressed the apparent assassination attempt against Donald Trump.

A gunman attempted to kill former President Trump at a rally on July 13.

Acting Secret Service Director Ronald Rowe and FBI Deputy Director Paul Abbate were grilled by lawmakers about the attempted assassination attempt against Donald Trump.

Trump's attempted assassination has had a reverberating effect around the nation, felt most closely by the agency tasked with protecting him, the U.S. Secret Service.

Secret Service Director Kimberly Cheatle, who came under scrutiny for the agency’s failure to prevent the assassination attempt on Donald Trump, has resigned.

The congressional hearing with the now-former Secret Service director on Monday also sparked an intense public debate over gun violence.

The U.S. Secret Service director told Congress on Monday that the agency failed in protecting former President Donald Trump at his rally on July 13.

Embattled Secret Service Director Kimberly Cheatle has no plans to resign after a group of GOP senators asked her to do so in a confrontation at the RNC.

In the wake of the assassination attempt on Donald Trump, Secret Service director Kimberly Cheatle, and the agency, have faced scrutiny for failing to prevent the attack.

ABC News spoke with an agent responsible for security in Chicago and Milwaukee.

A U.S. Secret Service agent was robbed at gunpoint in Tustin, California, over the weekend, according to police.

Police and Secret Service are investigating after three individuals attempted to break into a car outside the home of Naomi Biden, according to sources.

Nikki Haley's presidential campaign has applied for Secret Service protection, according to a spokesperson with the campaign and another source familiar

The Secret Service has been investigating since the drug was found near a visitor entrance on July 2.

An Israeli woman has sued an unnamed U.S. Secret Service agent, alleging the agent assaulted her while in Israel preparing for President Joe Biden's visit in July.

Jim Murray, the director of the US Secret Service, said he is extending his time with the agency until a new director is selected

An anonymous "White House security official" said then-Vice President Mike Pence's security detail began to "fear for their own lives."

One agent was on first lady Jill Biden's protective detail.

Recent changes to the Presidential Protective Division was driven by political concerns due to agents alleged loyalties to the current administration.

The Secret Service says it has no record a reported incident ever happened.

Nothing approximates the scale and the complexity of the White House.

Trump administration has settled on a new director for the agency.