Question: The person who defeated Parker Griffith in 2010 in the Republican primary was born on what date?
Sentence (from "Parker Griffith"): Rolf Parker Griffith, Jr. (born August 6, 1942) is an American retired radiation oncology physician, mathematics teacher, Army Reserve officer, entrepreneur and politician who served in the Alabama State Senate from 2006 to 2008 and then as the U.S. Representative for  's 5 congressional district from 2009 to 2011.
Relevant evidence: No