White House staff told to preserve Russia-related materials

Donald Trump, Reince Priebus, Mike Pence, Sean Spicer and Michael Flynn
President Trump accompanied by, from second from left, Chief of Staff Reince Priebus, Vice President Mike Pence, White House press secretary Sean Spicer and then-National Security Adviser Michael Flynn, speaks on the phone with Russian President Vladimir Putin, Saturday, Jan. 28, 2017, in the Oval Office at the White House in Washington.
Andrew Harnik | AP