The Iowa Caucus is now basically in a three-way tie, with Rick Santorum rising.

The Republican caucus in Iowa is headed for a photo finish, with the three leading contenders all within two points of each other.� Ron Paul is at 20%, Mitt Romney at 19%, and Rick Santorum at 18%. Rounding out the field are Newt Gingrich at 14%, Rick Perry at 10%, Michele Bachmann at 8%, Jon Huntsman at 4%, and Buddy Roemer at 2%.