Over the weekend, Minn. Rep. Michele Bachmann won Iowa's Ames Straw Poll, and Texas Gov. Rick Perry announced his White House run while former Minn. Gov. Tim Pawlenty withdrew. President Obama is also starting his bus tour of the Midwest. Guest host Tony Cox discusses presidential politics with Republican strategist Ron Christie and Salon.com's Joan Walsh.
GOP Presidential Front Feels Dramatic Shake Up
By NPR Staff • Aug 15, 2011