Tax Questions Persist For Romney

By Frank Lenzi Published: Aug 17, 2012 at 7:17 AM PDT
Tax Questions Persist For Romney
Republican presidential candidate and former Massachusetts Gov. Mitt Romney steps off his campaign charter plane as he arrives in Des Moines, Iowa, for a fundraising event Tuesday, Aug. 7, 2012. (AP Photo/Charles Dharapak)

The question of Mitt Romney's tax returns just won't go away. ABC's Ann Compton has the latest.