Obama leads in Des Moines Register Iowa poll

The Des Moines Register has announced the results of its latest Iowa poll, which show that "Democratic presidential candidate Barack Obama has widened his lead in Iowa over Hillary Clinton and John Edwards heading into Thursday's nominating caucuses.

"Obama was the choice of 32 percent of likely Democratic caucus goers, up from 28 percent in the Register's last poll in late November, while Clinton, a New York senator, held steady at 25 percent and Edwards, a former North Carolina senator, was virtually unchanged at 24 percent."

The Register's numbers and its analysis can be found here. And a summary of the most recent poll results in Iowa can be found at RealClearPolitics here and here

According to RealClearPolitics, an average of all polling data for 12/26-12/30 still gives Clinton a 1.6 lead.