Still lefties call for unity while the media goes banana over the news that Warren has pulled into first in Iowa. Meanwhile they ignore how Bernie is still doing well in other states.
It is complicated I agree. What is motivating Warren voters? Just as there is the idea that many Biden supporters are backing him out of fear over Trump - they feel he is the most electable and just want to beat Trump, the same could be said of some Warren voters. Bernie goes to far. Warren's "big structural change" is less ambitious than class war. Warren can get the anybody-but-Bernie voters.
Warren is better able to compromise. But is that a good thing. As Bernie repeatedly says, we need a political revolution in order to change things and beat the one percent.
The well-to-do big donors wanted Hillary who wouldn't change things but would defeat Trump. Turns out the votes wouldn't go for that. So the big donors back Biden who has moved a little to the left, and Warren who promises a little more. Wealth taxes, etc.
But Bernie promises "democratic socialism." This might require more confrontation, which the Warren voters don't want.
And yet despite her good plans, there keeps dribbling out news about how Warren is compromised. A charter school advocate on her staff? Knocking Bernie's housing plan. And now the anti-Bernie people coalesce around impeachment. Can't say that isn't ambitious and even divisive with Pelosi fearing it will fire up the Republican base.