most votes received in NH primary: https://thepostmillennial.com/breaking-president-trump-breaks-record-for-most-votes-ever-received-in-nh-primary
first in 48 years to win both states: https://rantingly.com/articles/trump-first-in-48-years-to-win-both-iowa-new-hampshire
GOP wasted $16.7M to defeat Trump in both states. https://www.breitbart.com/2024-election/2024/01/23/republicans-waste-167m-losing-effort-defeat-trump-new-hampshire-iowa/
Even Ronna urges Nikki to drop out of the race. https://thepostmillennial.com/breaking-rnc-chair-ronna-mcdaniel-urges-nikki-haley-to-drop-out-of-the-race
The key is the caucus.
When I was a R congressional chair, everything was paper ballots, in person, limited time voting with the counting viewable and supervised/validated