Of late, that's been Barack Obama in the Democratic race. It's a race for the ages, but he's won 11 straight contests and is looking to deliver a knockout on March 4. Can he do it?
NATIONAL
Barack Obama +4.4% Colorado
Barack Obama +6.0% Florida
John McCain +8.3% Iowa
Barack Obama +6.4% Michigan
John McCain +1.6% Nevada
John McCain +1.0% New Hampshire
John McCain +1.4% North Carolina
John McCain +4.7% Ohio
Barack Obama +1.3% Pennsylvania
Barack Obama +5.8% Virginia
Even Wisconsin
Barack Obama +7.0%
[NOTE: Figures above are averages of the 3-6 most recent surveys in each area. Updated June 17]