Obama delayed too long to force Clinton out. If she does not leave , she will be an extremely flawed candidate and Trump will win. If at this late date she is forced out, Sanders either gets the nomination ( and is beaten by Trump) or the Democratic Party badly splits and the Biden/Kerry/Warren candidate gets beaten by Trump.However the Republican Party must invest heavily in ballot security to overcome massive fraud.
I heard a joke that Warren’s plan to be President is be Hillary’s VP and then become President when Hillary is indicted/locked up.