Moderates would respond to a Democrat willing to slip the ideological stranglehold of a liberal interest group.
One of the best things about the democratic primaries was that horse-race-obsessed reporters rarely asked the candidates about education. Why was that good? Because hundreds of delegates who were at stake are members of Paleolithic teachers unions, ready to pounce on any challenge to the failed system they dominate. When the subject did arise, it quickly became a pander party with President Bush's (and Ted Kennedy's) No Child Left Behind (NCLB) as the piñata.