headline='On March to Nomination, McCain Nabs Backing of Bush 41';
url='http://www.pbs.org/newshour/vote2008/blog/2008/02/_on_march_to_nomination_mccain.html';
date='February 18, 2008, 1:57 PM ET';
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headline='Romney Backs Former Rival McCain in White House Bid';
url='http://www.pbs.org/newshour/vote2008/blog/2008/02/romney_backs_former_rival_mcca.html';
date='February 14, 2008, 5:32 PM ET';
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headline='Huckabee Challenges Weekend Washington State Results';
url='http://www.pbs.org/newshour/vote2008/blog/2008/02/huckabee_challenges_weekend_wa.html';
date='February 11, 2008, 4:24 PM ET';
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