So Flynn may have violated the emoluments clause by being paid by RT to be in Russia, which could wind him up in jail.
Flynn told the Russian ambassador that they should hold off responding to Obama's sanctions because Trump would reset relations, lied about it, the DOJ told the WH about it and then the WH did nothing about it, then it is reported that this is the case and Flynn resigns.
The interesting thing is Trump tweeted about Putin being very smart a day after Flynn's contact with the Russian ambassador.
A possible replacement? Petraeus! He only has 2 more months left on his probation for leaking classified documents to his mistress.