What power doesn’t the US President have? When does the Left start organizing?

Despite being ill, Glenn Greenwald puts his finger on the issue:

A very intense case of food poisoning in New York on Thursday, combined with my traveling home all night last night, prevents me from writing much about this until tomorrow (and it’s what rendered the blog uncharacteristically silent for the last two days). But I would hope that nobody needs me or anyone else to explain why this assertion of power is so pernicious — at least as pernicious as any power asserted during the Bush/Cheney years. If the President has the power to order American citizens killed with no due process, and to do so in such complete secrecy that no courts can even review his decisions, then what doesn’t he have the power to do?

Which strikes me as yet another issue to add to the pile: Maintaining the Drug War (the longest American war), illegal and unethical occupations, maintaining international gulags, environmental disaster inaction, corporate bailouts and give-aways while citizens lose their homes, and targeting Americans for assassination.

How bad do things have to get before the Progressive Left organizes even a march against the President like they did shortly before the Iraq invasion (large, in major cities, coordinated, and thus hard for the mainstream corporate media to ignore)? With the standards for impeachment being harder and harder to meet (thanks to an apparently politically inactive and apathetic public), how hard will it be to begin the process of telling the US President you don’t like what he’s doing and he needs to be replaced with someone else who won’t screw the public (this process starts with impeachment)? Wouldn’t this send a strong signal to Congress that the public is organized and if Congress doesn’t start seeing things the public’s way they’re next to leave office?