IOWA CITY – Herman Cain is still in single digits in presidential preference polls of Republicans after 19 trips to Iowa, but the Georgia businessman says he’s picking up support with every trip. “We look at the polls as a barometer and we want the temperatures to be going up. Right now they are moving up in the right direction,” Cain said June 6 before speaking at the University of Iowa as part of The Family Leader’s Presidential Lecture Series. He’s encouraged by what he called a redefinition of the nation’s political dynamics as political parties and grass roots groups...