South Carolina Supporters Iowa Voters Ron DeSantis Nikki Haley Rural Voters Trump's Base Enthusiasm First-time caucusgoers Voters Iowa Rally Iowa Working-class White voters Iowa Caucus-goers College-educated Voters Non-college-educated Voters Iowa Supporters Iowa supporters New Hampshire Rally New Hampshire Supporters Long-time Backers Undecided Voters Nikki Haley Supporters Mobilization 2024 Trump Supporters Approval Ratings Trump Supporters Motivations 2024 GOP Primary College-educated Women Voting Behavior Demographics Moderates South Carolina Primary Republican Voters Reasons for Support Conservatives Republican Supporters