To the extent that DeSantis tried attacking Trump at all, it was from the right on social issues. That didn’t go well. Haley is attacking Trump from the right on fiscal issues and foreign policy; that isn’t faring too well, either. But what would have happened if a genuine populist–both on social and economic issues–had challenged the man on golf cart? Would the result have been different?
Probably not, because the GOP rich men north of Richmond would have done everything in their power to tank this hypothetical candidate. They like their populism on the bogus side, and totally oriented towards social issues. Nevertheless, it would have been a lot more interesting than the race we actually had.