There may be a few, but I haven't seen anyone pushing hard for it.

From what I have read, trans issues affects very few people, and while there may be some politicians who care about protecting the human rights and well being of trans people, I don't know of any who are actively pushing for trans women to play on cis-gender sports teams. At any rate, I think the whole issue is overblown to make political hay, much like the abortion issue.