Step-by-step explanation:
In Obama the us is a constant in his speeches. "We can", "we can", famous
slogan of a speech. A kind of complicity with people, whom wants to be part of its policy and objectives, as if this policy were not possible without them. We all make the change and together. I just can't - seems to want
say Obama. This appeal to the us of discourse Obama is accompanied by resistance to the old policy, which does not look at citizens and focuses on struggles internal of the parties, which he calls the politics of the past, the dark politics.
A policy that needs to be changed on the other, but this renewal cannot
come from him only because only it cannot, but of all together.