Romney and Santorum seek edge in 20th debate (AP)

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AP - Struggling for an edge, Mitt Romney and Rick Santorum campaigned Wednesday into the 20th and possibly final debate of the roller-coaster race for the Republican presidential nomination.

Source: http://us.rd.yahoo.com/dailynews/rss/politics/*http%3A//news.yahoo.com/s/ap/20120222/ap_on_el_pr/us_gop_campaign

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