Texas Lt. Gov. David Dewhurst greets supporters outside a Houston deli Tuesday, July 31, 2012. Dewhurst faces former Texas Solicitor General Ted Cruz in the Republican primary runoff el

 

              Texas Lt. Gov. David Dewhurst greets supporters outside a Houston deli Tuesday, July 31, 2012. Dewhurst faces former Texas Solicitor General Ted Cruz in the Republican primary runoff el
Texas Lt. Gov. David Dewhurst greets supporters outside a Houston deli Tuesday, July 31, 2012. Dewhurst faces former Texas Solicitor General Ted Cruz in the Republican primary runoff election for U.S. Senator. (AP Photo/Pat Sullivan)