Certainly, there are policy differences among Democrats, and those will come out whenever they are again in a position to govern rather than resist. But Democrats are more ideologically homogenous than they have been historically. The Southern conservatives are long gone, and there is no equivalent to the “New Democrats” of the Bill Clinton era. The party has been pulled to a populist consensus by Sanders and Sen. Elizabeth Warren (D-Mass.), and pushed there by the Trump plutocracy, which has showered riches on the wealthy and the corporate.
Some within the party are fomenting division with litmus tests, such as
Tom Steyer’s effort to get Democrats to commit to impeaching Trump. But while 71 percent of
Democrats want impeachment, according to last month’s Quinnipiac Poll, there’s little evidence that voters are punishing candidates who don’t commit to what would be a futile gesture without a Democratic supermajority in the Senate.
Likewise, Sanders-allied activists are pushing for a “Medicare for all” litmus test — and almost all Democrats favor at least some form of Medicare buy-in. But there’s little evidence that voters punish candidates who are reluctant to abandon Obamacare for a Medicare-for-all aspiration that can’t happen while Republicans hold the White House.