The first problem is it seems to contradict what Yates has said in her testimony to Congress. Yates said she had informed McGahn about a) Flynn being interviewed and b) that he had provided bad information to the White House. But she also clearly seemed to suggest she didn’t share details of Flynn’s comments to FBI investigators with McGahn.
.. The White House is saying — clearly, for the first time — that Trump did indeed know Flynn had offered a problematic account of his contacts with the Russian ambassador to the FBI. You might recall back in mid-February that Trump basically had to be dragged kicking and screaming into firing Flynn, and he seemed to regret it in the weeks afterward. He only did it after public pressure became so intense over Pence’s false denials that the White House had no other choice.
.. Now, according to what Dowd is saying, Trump also resisted firing Flynn for weeks even though he was informed that Flynn had apparently made the same types to statements to the FBI. Trump really wanted to keep Flynn on, apparently, because he was willing to put up with his own adviser misleading federal law enforcement.