Late on Monday, the Washington Post was the first to report that former Atlanta U.S. Attorney Sally Yates warned Trump administration officials that then-national security advisor Michael Flynn had not told the truth about the nature of his conversations with Russia's ambassador to the U.S. Yates, who at the time was the acting U.S. attorney general, told the White House general counsel that Flynn could be vulnerable to blackmail by the Russians.
Flynn resigned after admitting he had inadvertently given "incomplete information" to then-Vice President-elect Mike Pence. Pence then publicly defended Flynn against questions about whether he had talked with the Russian ambassador about U.S. sanctions imposed by the Obama administration for Russian interference in the U.S. elections process.
The Post report, which cited current and former U.S. officials as sources, indicated that senior Trump administration officials knew about the problems with Flynn's account sooner than originally believed. For a look at Yates's role in warning the White House, Denis O'Hayer spoke on "Morning Edition" with Washington Post senior reporter Aaron Blake.
Note: Sally Yates declined to comment for the Washington Post story. WABE's attempts to contact her have so far been unsuccessful.