Sen. Ted Cruz addresses the Republican Leadership Conference in New Orleans, La., Saturday, May 31, 2014. Midterm election campaigns are in full swing, but several thousand Republicans gathering in Louisiana look toward a bigger prize. (AP Photo/Bill Haber)

Sen. Ted Cruz addresses the Republican Leadership Conference in New Orleans, La., Saturday, May 31, 2014. Midterm election campaigns are in full swing, but several thousand Republicans gathering in Louisiana look toward a bigger prize. (AP Photo/Bill Haber)