It's one of the oldest spectator sports in American politics: Democrat vs. Democrat.
White House
'We are ready to get this done today'
President urges action during final day of U.N. climate talks
Analysis
Latest news, analysis from NBC News political team
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World leaders struggle to reach climate deal
A diplomatic frenzy envelops the final day of the U.N. climate conference, with President Obama twice meeting with China's premier as drafts of a proposed framework compete for attention.
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Republicans threaten health care read-a-thon
Republicans threatened to delay Senate business with a health care read-a-thon this weekend, as Democrats kept searching for 60 votes to advance President Barack Obama's signature issue and a forecast of heavy snow added to the list of complications.
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CQ: Women carry corporate success to campaigns
Spurred in part by the rising anti-incumbent mood and the economic crisis, female executives have emerged as serious contenders for statewide political office in several states.
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