Sen. Ted Cruz (R-Texas) left, greets Former Alaska Gov. Sarah Palin (R) after introducing her at the 40th annual Conservative Political Action Conference in National Harbor, Md., Saturday, March 16, 2013. Diehard activists at the three-day conference are already picking favorites in what could be a crowded Republican presidential primary in 2016. (AP Photo/Carolyn Kaster)
FILE - In this Jan. 31, 2013 file photo Armed Services committee member, Republican Sen. Ted Cruz (R-Texas), questions former Sen. Chuck Hagel (R-Neb.), President Barack Obama's choice for defense secretary, during Hagel's confirmation hearing on Capitol Hill in Washington. Weeks into his job, Texas...
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