Yep. Progressives like Bush 1, Clinton, Bush 2, Obama, etc....just to draw up the last few decades.
The problem is that everyone else has been coralled into the two party illusion and those two parties are the flip sides of the same coin. You probably think I should have voted for Romney, the corporatist. While others would have said (should he have lost) that I should have voted for Obama the corporatist. Meanwhile the wheels on the bus go round and round....and NOTHING ever changes. It never will either. This system is a broken failure.
Our Congress is now controlled by two "ruling class" parties, who serve their own self interests. Neither party is interested in change or delegating more of their power back to the people. Republicans have become as infiltrated by Big Government Progressives as the Democrats, and you are right... flip sides of the same coin.
This is precisely why Levin argues it is time for a radical move on the part of the people. A grassroots effort to Amend the Constitution at the State level, and restore our Constitutional construct. Congress is not going to fix itself, the President is not going to fix himself, the SCOTUS is not going to fix itself. They are all serving their own perpetuating self interests, and disregarding the people. We keep hoping for a President who will change things, or a Congress that will do so, or then... even a SCOTUS who will intervene to uphold Constitutionality, and it just isn't happening, and it's not going to. Federal government is out of control, it has gone rogue. Our Founders were smart enough to give us the mechanism to correct just this sort of thing, without resorting to violence.