Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney addresses a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney works a crowd of supporters after delivering remarks as he visits a park in Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney arrives at a park to address a crowd of supporters in Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney greets supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney addresses a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney addresses a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

UPI/Bill Greenblatt

Republican Presidential candidate Mitt Romney greets a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney greets a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney waves to supporters as he leaves a rally at a park in Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

Republican Presidential candidate Mitt Romney addresses a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt

Republican presidential candidate Mitt Romney visits Missouri

UPI/Bill Greenblatt

Republican Presidential candidate Mitt Romney addresses a crowd of supporters as he visits Kirkwood, Missouri on March 13, 2012. UPI/Bill Greenblatt