Finally have a response - thank you American! Accepted into the MA-ID program with a sweet financial package. Will be difficult to say no to this, but am waiting for Elliot, Georgetown, SAIS, SIPA, and Harvard MPP (reach). Really hope they start responding soon...the anxiety has actually increased now that I've heard back from somewhere!
I visited all 4 DC schools (AU, GW, Georgetown, and SAIS) and found AU to be the most "personable", although it was summer so presumably the faculty and staff were not as busy as they are during the semester. Two very good friends of mine did the MA-ID from AU and were generally happy with it. If I get accepted into anywhere else, it's really going to come down to the money - AU's giving me full tuition and a 15k/year stipend through a research assistantship. I won't be able to afford more thank around 10k tuition + living costs, so even if I get in I likely won't be able to go anywhere else. So again, thank you AU!