brown. national security advisor michael flynn and the u.s. ambassador did speak about sanctions in at least one phone call. jake tapper reports the details. >> reporter: a bombshell out of washington today. nine current and former government officials told "the washington post" that national security advisor michael flynn discussed u.s. sanctions with russia with russias ambassador before taking office. both flirn and the white house insisting that's not the case. sources tell cnn these meetings occurred in september, just when obama was announcing retaliatory sanctions kbrens russia for interfering in u.s. election. >> it's not just that, oh, this subject came up, it's that flynn is conveying a clear signal to the russian ambassador, don't