Rachel Maddow tells the story of the FBI spying on Russian spies in the U.S., "Donald Heathfield" and "Tracey Foley," and notes the extensive biography of Peter Strzok, who led many of those operations - the same Peter Strzok that Republicans are trying to smear in order to discredit the Mueller investigation.

Carol Lee, NBC News national political reporter, talks about how Robert Mueller's indictment of 12 Russian military intelligence agents advances public understanding of the Russian intrusion into the 2016 election to help Donald Trump.