In Democracy Corps’ national and presidential battleground surveys conducted this week among likely voters, Barack Obama has emerged with the first real, sustainable lead of the presidential race. Obama has taken a 4-point lead nationally, but more important, he leads by 6 points in the presidential battleground states (50 to 44 percent). This lead represents a 10-point swing in the battleground states that Kerry lost by 4 points in 2004 – a comparable swing to what congressional Democrats achieved in 2006.