(CNN) - In the countdown to the March 4 primaries, tensions have been escalating in the Democratic primary race. Senior Political Correspondent Candy Crowley reports on how Sen. Hillary Clinton dealt with controversial comments by a supporter and how Sen. Obama responded to reports that he is not serious about altering the North American Free Trade Agreement if he wins the White House.
Sen. John McCain picked up the endorsement of a prominent Texas Republican Thursday. Dana Bash reports.
The war in Iraq is once again a topic of debate in the White House race. Senior Political Analyst Bill Schneider takes a look at what the presidential candidates are saying about the Middle Eastern conflict and how voters are responding.
Finally, Brian Todd reports on a key demographic - white male voters - that may determine who gets the Democratic nomination and who wins the White House in November.
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–CNN Associate Producer Martina Stewart
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