So at any rate as is made clear in the Greenwald essay there have been groups pushing for "The President is Really King" theory of government for decades at least. It is easiest to do it in matters of foreign policy and war. It will only be a matter of time before it starts happening in matters of domestic policy. That will be because the grid lock will start to be seen as a problem, even by the Villigers. Now there are many ways to fix the gridlock we have in the congress right now (simplist is of course get rid of the filibuster), but that isn't going to happen. We saw that at the beginning of this session. No individual senator wants to lose any of his power. Eventually it will all be taken away and some president's horse will end up voting with the rest of the senators although at least in that case it will be the entire horse.
What I see going on with our more or less elected officials is that those in "power" in the House and Senate (mostly the Senate) have managed, in protecting their personal power to the extent that they have, made themselves look largly ineffectual in their ability to accomplish anything (although obviously not in their ability to prevent anything from being accomplished). Peop;e are already sick and tired of it, it is only a matter of time before the rulers get tired and do something about it.