Trump now faces these four major criminal probes: Mueller prosecutor

Speaking to MSNBC's Lawrence O'Donnell, Robert Mueller's senior prosecutor Andrew Weissmann walked through the four major criminal cases Donald Trump now faces in court.

Weissmann said it was "remarkable" that a former president of the United States would be facing so many criminal investigations that are headed toward prosecution at the same time.

"That's worth taking a moment just to realize the breathtaking nature of that inquiry," Weissmann said. "The caveat is, we actually don't know everything that the prosecutors know.