Good evening. I'm John Yang. It hadn't happened in more than four decades. Someone

who'd been president of the United States shot in an assassination attempt.

Former President Donald Trump's wounds aren't life-threatening, but

last evening shooting in Butler, Pennsylvania could take an already divisive

presidential campaign into even more volatile waters.

It began as a routine scene, a swing state campaign rally on a hot summer day.

But as former President Donald Trump launched into his

stump speech everything changed in an instant. Take a look what happened.

Trump dropped straight down, sworn by secret service agents.

When agents knew that snipers had shot the gun when they raised Trump to his feet,

the right side of his face bloodied.

They hustled into the safety of an armored SUV.

This morning in the Pittsburgh suburb of Bethel Park about 50 miles south of the rally site,

police and reporters descended, all trying to learn what they could about

the man investigators identified as the suspected shooter. 20-year-old Thomas Matthew Crooks,

he was a registered Republican and in 2021 contributed $15 to a liberal voter turnout group.

The FBI is taking the lead in the investigation.

And we're still working through the security apparatus

that the Secret Service had in place.

What potentially happened?

That there's going to be a long investigation

into exactly what took place and how the individual was able to get access to

...