Just why are any of them in the DC jail.
Because the Left can put them there and the Right won’t do shit about. To the Right, their money is more important than their freedom. And they can keep saying, “we got guns.”
Because people don’t go to federal prison until they’ve been convicted of a federal offense. Every county jail near a federal courthouse has a section where they keep federal detainees until there’s a conviction in a federal court. In this case, I guess the city jail is close to the federal courthouse.