Fox News Poll: Trump gains ground in Iowa

Republican presidential front-runner Donald TrumpDonald TrumpTrump postpones Hispanic roundtable 'USA Freedom Kids' creator plans to sue Trump campaign California governor: Clinton should be worried MORE is back atop the GOP field in a new Fox News Poll with 34 percent support.

The latest results show an 11-point gain for the real estate mogul among Republican caucus-goers in the past two weeks.

Sen. Ted CruzTed CruzCastro looking at Cruz challenge Convention shows Dems are unified, to dismay of Trump and media Tim Kaine backs call to boost funding for Israeli missile defense MORE is in second place in the poll, released Sunday morning, with 23 percent.

Sen. Marco RubioMarco RubioGroups unendorse Grayson after domestic violence allegations Trump postpones Hispanic roundtable Tim Kaine backs call to boost funding for Israeli missile defense MORE then has 12 percent to hold the third spot.

Both Cruz and Rubio saw their support fall slightly in the latest survey, by 4 points and 3 points, respectively.

No other GOP candidate has double-digit support, pollsters found.

Fox News quoted Republican pollster Daron Shaw, who conducts the poll with Democratic pollster Chris Anderson, as saying, “We tend to over-interpret every little thing in a presidential race, but here we actually have solid evidence Trump didn't just win last week in Iowa -- he won it by enough to put some distance between himself and Cruz.”

The poll of 378 likely Republican caucus-goers, conducted Jan. 18-21, has a 5 percent margin of error.

The Fox News Poll also shows Trump holding his lead in New Hampshire with 31 percent support. Cruz follows with 14 percent while Rubio has 13 percent.

More in Presidential Campaign

FULL SPEECH: Newt Gingrich praises Trump, provides cover for Cruz

Read more »