The outcome in Iowa has little bearing or influence, if any, on what other states will do. Basically that sentence means nothing whatsoever.
I am sure all the other candidates will drop out of the race because DeSantis comes in second with 15% in Iowa.
Lol.
(What they really do is brag about how they came in third with 10% or fourth with 8%....)
Nobody is more deluded than losing caucus and primary candidates. They need the staff to keep showing up for work when it is 10 degrees out in New Hampshire instead of fleeing for warmer climates.