It’s not within his powers to do so. But he could have the secret service assassinate them. Pardon the perpetrators and then assign whomever he wants the position with threats against the lives of the senate and congress as a whole for all who would vote against assigning this person. Elimate them and have the vote.

I completely agree that’s what I meant by the 3rd party. Those who will refuse to vote for either and I tend to find that more common from those who would’ve voted Democrat compared to the ones that would’ve voted Republican

You’re forgetting a decent subset. Ones who are informed but would rather vote 3rd party, which due to not having Teddy Roosevelt won’t do shit, rather than vote for either of these guys