**FILE** Republican presidential candidate Mitt Romney speaks June 6, 2012, during a campaign stop at USAA insurance company in San Antonio. (Associated Press)
**FILE** Republican presidential candidate Mitt Romney speaks June 6, 2012, during a campaign stop at USAA insurance company in San Antonio. (Associated Press)
**FILE** Republican presidential candidate Mitt Romney speaks June 6, 2012, during a campaign stop at USAA insurance company in San Antonio. (Associated Press)
**FILE** Republican presidential candidate Mitt Romney speaks June 6, 2012, during a campaign stop at USAA insurance company in San Antonio. (Associated Press)
