Since George Washington, there have been eleven assassination attempts on U.S. Presidents, and four were successful. After the third successful assassination, of William McKinley, the secret service started working more on protecting the president, rather than with counterfeit currency, as they had been. Now, the secret service protects the president and vice president, the president-elect and vice president-elect, their immediate families, and other politicians.
Learn more about the importance of protecting the President of the United States in the infographic below, presented by Security Degree Hub.
Source:
Security Degree Hub