Tonight, on all in,

as the most dangerous terrorist vector homeland, is white supremacy.

The President makes the case again, and the backlash from the right is ferocious.

It's absurd. It's really disgusting, it's divisive.

Tonight, new reporting on a potential connection between white supremacists

and the office of a sitting Republican congressman.

Then, what we know after two were hospitalized during a violent attack

at the office of Democratic congressman Jerry Connelly.

Plus, the DeSantis campaign overhauled that includes

shaky hands and looking people in the eyes.

I'm not a candidate, so we'll see if in when that changes.

And Senator Ed Markey on his renewed plan to fix a broken Supreme Court

by adding four new justices when all in starts right now.

Good evening from Washington DC, I'm Eddie Hassan in for Chris Hayes.

Over the weekend, President Biden delivered the commencement address

at one of the nation's leading historically black universities.

And he warned the graduates at Howard about what he believes

is the biggest threat facing this country, white supremacy.

We know that American history has not always been a fairy tale.

From the start, it's been a constant push and pull

for more than 240 years.

Between the best of us, the American idea that we're all created

...