If Trump knew Flynn lied to the FBI before he asked Cromey to back off, it is obstruction of justice.
There seems to be a problem with impulse control inside Donald's addled brain. Despite senior advisors asking him to cut back on the tweeting, this jerk can't stop himself.
The alibi process has begun and the defence will be that it was not Trump who tweeted from his account.
Our salvation will be his idiocy.
God willing.