I don’t buy that for a second. They all vied to be on the ticket. Even if she loses, it gives them some cred for a future POTUS campaign.
Therein lies the real problem. All of the top RATs want to avoid losing to Trump, especially in their own States. That would hurt them politically. If Trump wins, he has one term. Two years into another Trump Presidency, he would be a lame duck. They would prefer to run against a JD Vance in 2028. By then, a Newsome & Cooper or Newsome & Whitmer would be a strong ticket. Josh Shapiro will never be on a Presidential ticket.
They had to find someone who would not overshadow Harris and who, if he loses, is no harm, no foul. This is the pinnacle of Waltz's career; I am not sure he could win as Governor again in MN. I wonder if the RAT shadow government under Obama wants Harris to win. The stronger RAT candidates would be sidelined until 2036 or later. Obama may prefer people he can manipulate. But Obama and the RAT Oligarchy control the money and votes so any RAT candidate would follow Obama's orders.