It sounds like you really need to get out there and network. Honestly, if you had been concentrating on networking rather than an MA (in poly sci?! I guess it may be a little useful for governmental work, it honestly wouldn't even have been surprising if you had been dead-set on governmental work when you chose it, not a good degree for someone who wants lots of options though), you probably would have had a better idea of exactly what way you would be going, at least starting off. Still, it does seem like you have the drive to get work experience (don't you have a feel for whether you like government work by now?), through your governmental jobs, but you should really be focusing on talking with lawyers/governmental workers and seeing exactly what would make you stand out and what you want to do.Go find the posts on networking.