What if the plan of the leadership and donors of the Democratic party to put Hillary in the White House never changed but they simply choose to use a different method to shield her from the upcoming storm.
Biden picks Hilldawg as VP so she can enact her revenge and secure the woman vote. HRC could never win an election against Trump on her own but Biden might be able to beat Trump.
After completing his task Biden resigns after 2 years citing his age, Hillary becomes the President that was promised.