I actually have to agree with tracii. Unfortunately, no matter how high your hopes, politicians are all the same (at lest they end up that way). I'm not from the U.S., but here is Australia we often have popular public figureheads, celebrities etc getting into these positions because everyone believes they will somehow be "different" and "for the people" but they never are... And with still such a low percentage of TG (outed at least) generally out there in the world, I don't think it's going to become a regular thing, that is having a TG member member of parliament.
Obviously it is still wonderful news she got the position, but wouldn't get too excited for what it means.