This is a kind of triumphalism we'd object to from the other side. Victory laps are great, but this is just not true.
"Finally, the informal alliance between African-American progressives, white progressive organizers and bloggers, and disaffected union members can beat any Democrat in any primary anywhere in the country."
We have an obligation, even in victory-- ESPECIALLY in victory-- to keep one foot on the ground and not overpromise. We couldn't possibly win with that coalition in any of a dozen or more states I could mention.
It's going to be a long 2 1/2 years, and we should be prepared to do the hard work of appealing BEYOND those three segments you mention because they aren't a majority in anywhere near half of the tossup races.
Sorry, but come back down to earth sometime soon, OK?