Here is a link to watch the Lincoln Dinner.
I rate the top 3 candidates in order:
1) Ron DeSantis
2) Nikki Haley
3) Tim Scott
How's this for a nightmare scenario...DeSantis fades, and Haley shoots to the head of the pack among the challengers. Trump then -- as he is wont to do -- gets vicious, and attacks her nastily in ways that come across as gender-based. He still wins the nomination, but only after irretrievably pissing off all but the most hardcore MAGA females.
Good times for the GOP!! And not even farfetched, unfortunately.