Obama just says whatever he needs to make his minions happy.
Check it out:

A newly surfaced video of Barack Obama as a presidential candidate is spreading like wildfire today, revealing a stark contrast between his promise in 2008 about executive power with his recent actions in the White House.

Obama says this in the 2008 video:

The biggest problems that we’re facing right now have to do with George Bush trying to bring more and more power into the executive branch and not go through Congress at all. And that’s what I intend to reverse when I’m president of the United States of America.

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