GOP presidential candidates brave cold weather and get final endorsements on eve of Iowa caucuses
0
![GOP presidential candidates brave cold weather and get final endorsements on eve of Iowa caucuses](https://media-cldnry.s-nbcnews.com/image/upload/t_fit_1500w/rockcms/2024-01/240114-donald-trump-mn-1525-9e42f1.jpg)
Donald Trump has a nearly 30-point lead in the final NBC News/Des Moines Register/Mediacom poll before the caucuses.