Who is Trump?

Ambinder asks:

And it’s clear that the Iraqi government wants U.S. troops out more quickly than John McCain does, whilst U.S. generals want to send troops home more slowly than Obama does. Who trumps who?

The obvious answer here is the Iraqis, because they’re the sovereign power in Iraq. Any other answer necessarily ignores that fact and accepts the United States as an overtly hostile occupying power of foreign territory.