
Hard to say, Mustang is quite the idealist like Obama and JFK, but isn't above using force when it becomes really necessary. Moreover, he comes from a military background, that sounds more Republican for me, but he's an idealist military type so, he seems to fit the Dems too. I'd say he'd be more inclined to lean on the left gravitating a bit towards the center. He would probably prefer not to cut any military spending, compared to Obama but in terms of his overall policy I could see him lean towards the left.
My take on a real-life Mustang.