Ed Driscoll considers the longing of some on the left for a Tea Party movement, and is highly skeptical of the likelihood of something like this happening.
I agree. The Tea Party was (and is) a genuine grassroots movement dedicated to changing the course of politics in America by challenging the ruling class (which consists of Democrat and Republican establishments). In that sense, it is revolutionary. So-called populist movements on the Left aren’t interested in changing course; they simply want to get to the worker’s paradise more quickly, and thus are concerned only with the pace of the march on the road to serfdom.
This is why the Tea Party might ultimately launch a successful revolution, but any leftist version will never be able to do anything but aid and abet a coup.