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Obama and Romney each took 47 percent support in the poll. Other recent polls have shown Obama with a slight 2.7 percent lead, according to the Real Clear Politics average of polls.

In a Web video on Monday, Obama campaign manager Jim Messina identified Virginia as one of eight toss-up states that will be critical in determining the outcome of the 2012 election.

Virginia was a reliably Republican state in presidential elections until 2008, when Obama defeated Sen. John McCainJohn McCainBush biographer: Trump has moved the goalpost for civilized society White House to pressure McConnell on ObamaCare McCain: Trump needs to state difference between bigots and those fighting hate MORE (R-Ariz.) by 6 percent there.

The president started off his campaign in Virginia in early May, and Romney received the endorsement of Rep. Michele BachmannMichele BachmannBachmann: Muslim immigrants trying to undermine Western civilization Religious leaders pray over Trump in Oval Office 'Real Housewives' producer 'begging' Conway to join cast MORE (R-Minn.) at a campaign stop there just prior, where he was joined by Virginia Gov. Bob McDonnell, whom many view as a potential vice presidential candidate.