On Saturday, a shooter attempted to assassinate former President Donald Trump. Now, the Secret Service is coming under scrutiny for failing to prevent it. WSJ’s Sadie Gurman and Ryan Barber on what we know about the shooter, and about what went wrong for the Secret Service.

Further Reading:

- Trump Rally Gunman Thomas Matthew Crooks Said to Have Been Loner Who Rarely Voiced Politics 

- Trump Shooting Is Secret Service’s Most Stunning Failure in Decades 

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