You’ve seen the image by now: Former President Donald J. Trump has blood running down the side of his face. He’s being escorted off his rally’s stage by the Secret Service, and he pauses to look at the crowd, his fist proudly in the air.

It’s too soon to know how the attempt on his life on Saturday in Pennsylvania will affect the outcome of the race. But Trump’s allies have already made the shock of the assassination attempt, and the violence, part of a clear political message.

To hear them tell it, Trump and his party are under attack.

This sense of persecution has long been core to Trump’s message. And the events of the weekend will only amplify that.

Today, as the Republican National Convention gets underway, we’re digging into that message with the Trump supporters who most embody it. And we’re doing so from their unlikely headquarters, where they gather every evening in Washington D.C.: outside the D.C. Jail.

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