The latest Des Moines Register Iowa Poll finds Mike Huckabee and Barack Obama atop the fields of their respective parties, continuing the momentum for each candidate chronicled in other public polls released during the past week.

The poll, conducted November 25-28 of 500 likely Democratic and 500 likely Republican caucus voters, finds Obama (28 percent), Hillary Clinton (25 percent), and John Edwards (23 percent) once again bunched within 5 points of one another. This continues the trend found by other surveys released during the past week of a close three-way race for the Democratic nod in Iowa. The latest American Research Group (ARG) poll found a 4-point spread among the three candidates with Obama on top, while the latest Rasmussen poll found a 3-point spread with Clinton on top.

Bill Richardson registered 9 percent in the new poll, followed by Joe Biden at 6 percent, and Dennis Kucinich and Chris Dodd at 1 percent each.

Although only 7 percent of respondents were undecided, it should be noted the Des Moines Register poll includes ‘leaners’ in its findings—those who do not initially express a particular candidate preference. Of those polled who ultimately stated a preference (some after a follow-up question prompt), more than half of the likely Democratic caucus voters stated they could change their mind by January 3rd.

On the Republican side Mike Huckabee makes his case as the new ‘comeback kid’ from Arkansas—leading the field with 29 percent in the new poll. Huckabee also led in last week’s Rasmussen poll and trailed Romney by a statistically insignificant 1 point in last week’s ARG survey.

In the Des Moines Register poll, Mitt Romney now trails by 5 points at 24 percent, followed by Rudy Giuliani at 13 percent, Fred Thompson at 9 percent, and John McCain and Ron Paul tied at 7 percent. Tom Tancredo, who has led the anti-illegal immigration charge that has taken on such an important role in the primary debates, came in seventh at 6 percent—the highest level of support he has received in any public poll of Iowans to date. Duncan Hunter received 1 percent with 4 percent undecided. Nearly 60 percent of Republican caucus voters stated they could be convinced to switch allegiances prior to Caucus Day.