Liz Mathis, a Democrat who is seeking to represent the Iowa's 2nd Congressional District, said this week that defining a woman is a "tough question" and suggested that the only way to change controversial policies in a particular school district in the state is to vote for different board members. The remarks from Mathis came Monday during a meet and greet at the Waterloo, Iowa, Rotary Club, where she took questions from those in attendance on a number of subjects, including gender and education.