Edwards takes back the lead in new Iowa poll

From Political Wire:

A new InsiderAdvantage poll in Iowa shows John Edwards leading among likely caucus-goers with 30% support, followed by Sen. Hillary Clinton at 26% and Sen. Barack Obama at 24%.

This is the first poll to show Edwards ahead of his rivals since summer.

Key finding: Edwards holds a significant advantage "among a group who could be key to the first contest of the presidential year: those who say their first choice is someone other than the top three. Under Iowa Democratic Party rules, candidates who poll less than 15 percent in the first vote at each caucus around the state are eliminated, and their supporters get a second chance to vote for another candidate."

In the Republican race, Mike Huckabee leads with 28%, followed by Mitt Romney at 25%, Fred Thompson at 10%, Sen. John McCain at 9%, Rep. Ron Paul at 6%, and Rudy Giuliani also at 6%.