If one assumes it is a botched joke it still says the same thing ...
Caution : Joke Analysis:
The joke was supposed to be :
if you study hard and you do your homework, and you make an effort to be smart, uh, you, you can do well. If you dont, you get(us)stuck in Iraq. and that is supposed to mock Bush (who is stupid)
The only way to read it is that one is expecting the joke teller to say (the troops) are stuck in Iraq, but instead the joke teller says you (Bush) got us stuck in Iraq. (Ha Ha)
So it implies exactly the same thing that he clearly said except that the emphasis is on the Commander in Chief being the dumb one
I hope I was clear