Obama has already won the 2012 Presidential election. This progressive group is just making headlines for the sake of attention whoring. Their support is inconsequential to his campaign.
Likely true, but there's a lot of open territory between now & the election, & it's possible that progressives might splinter from the Democratic Party if they get beat down too badly by their own corporate leadership. A truly discouraged base has a tendency to stay home on election day, too.
Just sayin'...
