CBS Poll: Trump Leads in All Battleground States Except Iowa

Ben Carson is tied with Donald Trump for first place in Iowa, while Trump maintains a large lead in New Hampshire and South Carolina in the latest CBS News/Battleground Tracker poll released Sunday.

Here are results:

Iowa

• Donald Trump: 27 percent
• Ben Carson: 27 percent
• Ted Cruz: 12 percent
• Marco Rubio: 9 percent
• Jeb Bush: 6 percent
• Carly Fiorina: 3 percent
• Rand Paul: 3 percent
• Rick Santorum: 2 percent
• Mike Huckabee: 2 percent
• Bobby Jindal: 2 percent
• John Kasich: 2 percent
• Chris Christie: 1 percent

New Hampshire

• Trump: 38 percent
• Carson: 12 percent
• Bush: 8 percent
• Fiorina: 7 percent
• Rubio: 7 percent
• Kasich: 5 percent
• Cruz: 5 percent
• Paul: 4 percent
• Christie: 2 percent

South Carolina

• Trump: 40 percent
• Carson: 23 percent
• Cruz: 8 percent
• Rubio: 7 percent
• Bush: 6 percent

Other candidate results were not included when the poll was released on CBS' "Face the Nation." The poll has a margin of error of plus or minus 6.6 percent.

On the Democratic side:

Iowa

• Hillary Clinton: 46 percent
• Bernie Sanders 43 percent
• Martin O'Malley: 3 percent

New Hampshire

• Sanders: 54 percent
• Clinton: 39 percent
• O'Malley: 3 percent

South Carolina

• Clinton: 68 percent
• Sanders: 24 percent
• O'Malley: 1 percent

The margin of error is 6.9 percent

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