Sen. John McCain cemented his Republican front-runner status Tuesday, piling up big wins coast-to- coast, according to CNN projections. Democratic voters remain evenly split on Sen. Hillary Clinton and Sen. Barack Obama for their party's nomination.The presidential races head to key primaries in Virginia, Maryland and the District of Columbia next Tuesday. The candidates hope to gain momentum for those with victories in the Louisiana primaries and Washington state caucuses on Saturday.
Both the Obama and Clinton campaigns acknowledge an edge to Obama in those races. Clinton will focus on March 4 primaries in Texas and especially Ohio, said the Web site Politico's executive editor Jim VandeHei.
"There are a lot of working-class whites [in Ohio] and she feels she does extraordinarily well with that demographic," VandeHei said on CNN's "American Morning."
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