These polls do not take into account the Democrat crossover votes.
Trump’s caucus captains said they are on the lookout for Donk funny business. Every caucus has the voter rolls. I think Dems who try funny business by changing registration will be made to feel uncomfortable by the others. That is what they have to be aware of. With the caucus on different days this year the DJT people are aware of Fraud potential, and the Donks know they are being watched. Imagine 100 people at a typical caucus... Based on polling 65 of those will be MAGA Trump. You think a dozen FAUX Haley supporters who are registered Dems show up to change registration to caucus for Nikki, but plan to vote Biden in November anyway? It will be VERY uncomfortable. I think Donks will stay home drink cocoa or something stronger and watch CNN or MSNBC and call Trump a Fascist in safety.