Hillary Clinton leads rival Bernie Sanders by 25 points nationally ahead of Sunday's final Democratic debate and the all-important Iowa caucuses, according to the latest results from the new NBC News/Wall Street Journal poll.
Clinton is the first choice of 59 percent of Democratic primary voters, while Sanders gets the support of 34 percent. Martin O'Malley gets 2 percent.
But Clinton's current 25-point lead contrasts with other recent national polling, including a New York Times/CBS survey, which found Clinton with just a seven-point advantage.
The NBC/WSJ poll screens out Democratic and Republican voters who aren't expected to participate in the presidential primaries and caucuses.
The debate will air on NBC at 9:00 pm ET.