As Democrats try to unite around their new “Better Deal” agenda, the supposed battle between the “socialist” left and the “corporatist” center seems to have collapsed into a bland but serviceable slogan, with a reasonably progressive economic agenda that both Senators Elizabeth Warren and Charles Schumer can get behind. So much for that overhyped party civil war.

But Democrats shouldn’t be trumpeting party unity quite yet. The economic-left-versus-center debate has always been primarily an elite one.

Among the Democratic rank-and-file, the more consequential divide is between those willing to trust the existing establishment and those who want entirely new leadership. It’s a divide that Democratic Party leaders ignore at their peril.

As part of a report I wrote for the Democracy Fund Voter Study Group, I looked at divides between enthusiasts for Senator Bernie Sanders and supporters of Hillary Clinton. For many policy issues I couldn’t find much difference of note, except for a little disagreement over the benefits of foreign trade. Most Democratic voters generally agree on first principles: Economic inequality is a problem; government should do something to help the less advantaged; diversity is a strength. That’s why getting to a shared “Better Deal” agenda was relatively easy.