Want proof negative advertising works? From MSNBC's First Read:
After nearly two weeks of Romney airing TV ads in the this state criticizing his records on immigration and crime, Huckabee's standing in Iowa has slipped, according to the latest MSNBC/McClatchy/Mason-Dixon poll. In the survey, Romney now leads Huckabee, 27%-23%... Three weeks ago — before Romney began his contrast ads — the poll had Huckabee comfortably leading Romney, 32%-20%.
One of the reasons for Huck's decline: His lead over Romney among self-identified born-again Christians has dropped from 42%-8% to 34%-27%. And among weekly churchgoers, it has decreased from 38%-15% to 28%-27%.
Mitt's anti-Huckabee ads are after the jump.