Former Texas Solicitor General Ted Cruz, center, greets supporters at a voting precinct Tuesday, July 31, 2012, in Houston. Cruz faces Lt. Gov. David Dewhurst in the Republican primary runoff election... more 
Former Texas Solicitor General Ted Cruz, center, greets supporters at a voting precinct Tuesday, July 31, 2012, in Houston. Cruz faces Lt. Gov. David Dewhurst in the Republican primary runoff election for the Republican nomination for the U.S. Senate. (AP Photo/Pat Sullivan) less 
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Associated Press | Photo By Pat Sullivan
Tue, Jul 31, 2012 4:20 PM EDT