There are a few other issues where a clear majority of people support the position of the Democratic Party, though they may not know it since the the Dems are so cautious.
The first is the egregious Supreme Court decision in the "Citizen's United" case. Here, a huge majority in a fairly recent poll agreed with most Democrats (and even a few Republicans, though it helps the PTR) that the decision was a bad one: Citizen's United.
Another issue is the regulation of Wall Street. Once again the population at large supports strong regulation, as do the Dems but not the PTR: Regulate Wall Street.
Once again, it's the terrible Democratic propaganda machine, not Nancy Pelosi, that is hurting them. Is there no talent out there on the Left?