Trump says US will withdraw from nuclear arms treaty with Russia

President Trump said that he will withdraw the U.S. from a Cold War-era arms control agreement, accusing Russia of violating the pact. NBC’s Kristen Welker reports on the latest, as well as unconfirmed reports that the Trump administration is moving to change the definition of gender to be biological, essentially writing the term “transgender" out of existence.Oct. 22, 2018