ANKENY, Iowa — At first, she liked Texas Gov. Rick Perry. He was about faith and family, just like she is. Then she heard Perry debate. And then she liked Rep. Michele Bachmann (Minn.). Another assertive Christian. But that ended, too: “She has kind of an annoying voice.” So then Susan Fredregill — a 58-year-old retiree with blonde highlights and six grandchildren to watch — moved on to her third Republican candidate of this chaotic presidential primary season.