Do you agree that the VP is essential?
If so, one could assume that the two cabinet members who uncloaked would only do so if they thought Pence was on board.
Otherwise, why would anyone stick their neck out if the entire enterprise was up to someone (Pence) whose opinion was not known?
It does not make logical sense although that has never stopped idiots from being idiots in the past.
Securing 53 in the Senate took away the avenue of removal of POTUS & VP and allowing NP to pack the Supreme Court.
All the left leaning justices either over 65 or in bad health would have retired and a Dem Senate would have rammed through their replacements.
SC secured