Gingrich's Iowa bounce helped by Cain backers

DES MOINES, Iowa — Republican presidential contenders Newt Gingrich and Michele Bachmann are attracting most of businessman Herman Cain’s former Iowa supporters, according to Steve Grubbs, Cain’s top Iowa adviser.

Cain lost roughly 25 percent of his Iowa supporters in the month of November, after several women alleged Cain sexually harassed them and another said she had a 13-year affair with him, said Grubbs, who hasn’t decided whether to endorse a candidate.