<p>WASHINGTON (AP) - A new Associated Press-GfK poll shows Sarah Palin is the most polarizing of the potential 2012 Republican presidential candidates.</p>
<p>The survey also shows more positive impressions of Mike Huckabee and Mitt Romney. As for the rest of the pack - Tim Pawlenty, Haley Barbour, John Thune, Mitch Daniels - have name recognition problems.</p>