Robert Reich's explanation of why Republicans stick to the party line
more than Democrats do is a matter of basic values.
I suppose there is some truth in this, but it is not the whole story,
What causes some Democrats to block progressive measures that most
Americans want is lobbying by rich people and even richer corporations.
This doesn't divide Republicans because Republican positions are chosen
mostly to suit those rich bastards. The Republican ideas based on hatred of disprivileged groups
or imposing Christian extremist morality
don't conflict much with the ideas based
on serving the rich.
So they have little reason to disagree.
By contrast, among Democrats there is a pervasive conflict
between the progressive policies that most Americans support
and the plutocratist policies that the lobbyists advocate.
That is what pulls Democratic elected officials apart.
Each one decides how much to support the rich and how much
to support the party's base.
Too much support for the rich alienates the base, which is why
this year some of them turned to the magats in desperation.
The way to change this situation is to choose exciting progressive
Democratic candidates in Democratic primary elections. By
strengthening the Democrats' will to overcome the plutocrats,
we will reduce the division that they can sow in the party.