WASHINGTON (CNN)–Look for more red-hot scrutiny of Republican Mike Huckabee this week, the underdog turned top dog in Iowa.
A Newsweek poll shows Huckabee now has a whopping 22 point lead over Mitt Romney in Iowa - other polls don't show as big a Huckabee lead, but with a little over three weeks to go until the lead-off contest, the former governor of Arkansas is now the one to beat.
Expect Huckabee to be a target when the GOP candidates square off in the Des Moines Register debate on Wednesday.
Romney, in particular, will be trying to regain his footing in Iowa, where he once enjoyed a comfortable lead.
Thursday, it's the Democrats' turn to debate in Des Moines - with the three-way slugfest between Hillary Clinton, Barack Obama and John Edwards taking center stage.
Clinton and Obama refocus on the Hawkeye state after dueling weekend events in South Carolina featuring superstar surrogates: Bill Clinton and Oprah Winfrey.
But no one is bigger than Republican Ron Paul's new campaign vehicle: A blimp - floating up the Eastern seaboard this week - headed right for the first in the nation primary state of New Hampshire.
-CNN Anchor Wolf Blitzer