It's Already Happened

Howie Klein at Down with Tyranny observes that the Democratic Party establishment is targeting liberals, with both the DCCC and the DSCC systematically supporting conservative Dems over liberal ones, even when the numbers point toward the liberals being a more competitive candidates.

It's clear, for example, that DCCC chairman Steve Israel feels that is more important to rebuild the Blue Dog Caucus than it is to win control of the Congress.

He then wonders the establishment would target a liberal presidential candidate and support a less electable corporate Democrat:

Which suggests an interesting thought. If a truly hard-core progressive — an Elizabeth Warren or Zephyr Teachout, say — were the party's strongest presidential candidate, would corporate Democrats choose a lesser candidate anyway, one with a greater chance of losing, just to keep the White House in the hands of someone's One-Percent candidate? Again, your call, but we may see that tested fairly soon.

 He's actually wrong about this.  It already happened ……… In 1973, and not only did the party establishment not support the Liberal nominee, George McGovern, and they actively sabotaged his campaign, and tacitly supported Richard "The Human Stain" Nixon.

The corporatist wing of the Democratic Party will fight for its power within the party even at the expense of the power of the party.