FILE - In this June 22, 2012 file photo, Texas Senate Candidates Ted Cruz, left, and Texas Lt. Gov. David Dewhurst , right, are seen after their televised debate in Dallas, Texas. Cruz, the tea party candidate for U.S. Senate has come a long way since he kicked off his campaign more than a year ago with seemingly no chance of competing against the mainstream GOP front-runner in the race, Dewhurst.( AP Photo/Pool/LM Otero, File)

Associated Press
FILE - In this June 22, 2012 file photo, Texas Senate Candidates Ted Cruz, left, and Texas Lt. Gov. David Dewhurst , right, are seen after their televised debate in Dallas, Texas. Cruz, the tea party candidate for U.S. Senate has come a long way since he kicked off his campaign more than a year ago with seemingly no chance of competing against the mainstream GOP front-runner in the race, Dewhurst.( AP Photo/Pool/LM Otero, File)
FILE - In this June 22, 2012 file photo, Texas Senate Candidates Ted Cruz, left, and Texas Lt. Gov. David Dewhurst , right, are seen after their televised debate in Dallas, Texas. Cruz, the tea party candidate for U.S. Senate has come a long way since he kicked off his campaign more than a year ago with seemingly no chance of competing against the mainstream GOP front-runner in the race, Dewhurst.( AP Photo/Pool/LM Otero, File)
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