Polls: Iowa Really Hard to Call

All polls are for Iowa:

Hillary Clinton and Barack Obama are tied within the margin of error, while John Edwards lags. Mitt Romney and Mike Huckabee are also statistically tied. [CNN/Opinion Research]

Clinton is first, with a statistical tie between Obama and Edwards. Edwards has a significant lead as a second-choice candidate. [Insider Advantage]

Huckabee leads Romney 29 percent to 25 percent, though within the margin of error. In this survey as well, Clinton maintains a small lead over a dead heat between Obama and Edwards. [Reuters/C-SPAN/Zogby]

And in case you missed it, Clinton pollster Mark Penn responded aggressively to the Des Moines Register poll. [blogHILLARY]

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