Sometime after Dec. 30, 2016 — The FBI reviews intercepts and finds the Flynn-Kislyak conversation.
Jan. 12 — Washington Post columnist David Ignatius first reports the contact between Flynn and Kislyak
Jan. 13 — Trump spokesman Sean Spicer says Flynn did not discuss sanctions with the ambassador
Jan. 15 — Vice President Mike Pence tells CBS's "Face the Nation" that sanctions were not discussed in Flynn's call.
Jan. 19 — Obama administration officials — Director of National Intelligence James Clapper, CIA Director John Brennan and Acting Attorney General Sally Yates — discuss the situation
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Jan. 20 — Trump inaugurated.
Jan. 20 or 21 — The FBI questions Flynn about his call to the ambassador
Jan. 26 — Acting AG Yates tells White House Counsel Donald McGahn about the call. Trump was told immediately, and the White House counsel launched an "exhaustive" review that included questioning of Flynn.
Feb. 9 — The Washington Post reports that Flynn, according to current and former U.S. officials, did discuss sanctions with the Russian ambassador; officials confirm the content of
the discussion to NBC News. This day is the first time Pence is informed of the Justice Department warning about Flynn's call — two weeks after Trump was told.
Feb. 14 — 19 days after Trump told about Flynn's call...Spicer says Trump asked Flynn to resign