HARLOW: All right. First on CNN, the U.S. has brought another alleged American ISIS fighter back home to face trial.</s>SCIUTTO: CNN Pentagon reporter Ryan Browne has more. Ryan, what do you know this morning?</s>RYAN BROWNE, CNN PENTAGON REPORTER: Well, Jim, we're being told that the U.S. government has brought back another U.S. citizen from detention in Syria. And he was among some 2,000 foreign fighters that are -- continue to be held in Syria. These are foreign citizens who traveled to Syria, Iraq to join ISIS. And it's become a real problem for the U.S. and its allies. The Trump administration has been pushing European countries to take back several hundred European citizens that are still being held, for having fought with ISIS. The U.S., trying to lead by example here. This is the second U.S. citizen, repatriated to face charges in this month. But this is a real problem, and it's complicating President Trump's plans to leave Syria, because what will become of these 2,000 fighters. Should they escape, or be released -- Jim, Poppy.</s>SCIUTTO: And there's been an issue with other countries, being willing to take back fighters of their nationalities. A bone to pick with the Trump administration.</s>HARLOW: That's true.</s>SCIUTTO: Ryan Browne, always good to have you at the Pentagon. Coming up, we're going to hear from both Joe Biden and Senator Kamala Harris' campaigns: What would they have done differently last night?
American ISIS Fighter Returned to States for Trial.