Here’s the thing about IR & polisci: the way you get entry level jobs (generally poorly paid) is internships (un- or terribly paid). To get to the ‘good’ jobs you will almost certainly need a Masters- which are expensive. So, even more than most students the prospective IR person needs to factor in $$.
GWU is the single best school in the US for polisci/IR internships: if you hustle you can have meaningful internships year round. It is also expensive.
UWi-M is a perfectly good choice- in principle. But, for you as OOS, is it the best use of $$?
For IR, a genuinely fluent 2nd language is important- and you can get that with study abroad from almost any college. You can get internships in DC every summer- but none of them will pay you enough to afford to live there, so you will have to have some $$ saved going into the internship (or have a free place to live).
I love that @tsbna44 shares the story of her/his daughter’s journey, b/c it makes the point so clearly: follow the money and go where you will be a star.
tl;dr- unless you have the money to graduate debt-free from either, I vote neither.