Either Biden narrowly wins SC and uses that “victory” to continue on and split the remaining “moderate” vote, thus allowing Sanders to easily win most of the remaining contests...or Sanders narrowly wins, essentially ending this thing once and for all. The end result is the same.
But polls show that if any of the other "moderate" candidates took on Sanders 1-on-1 they will lose. So the best way to do a "favorite son" strategy where several "moderate" candidates run and all/most get above 15% to get a share of the delegates with a seat at the table if they can hold Sanders to below 45% of the overall delegates.
That’s a good strategy to re-elect Trump, yes
