From some source, though I forget which:
“I actually feel the political atmosphere has improved markedly for gender identity civil rights,” said Sen. Jamie Raskin (D-Montgomery County), one of the lead sponsors of the bill.
“But the problem is we did same-sex marriage and for some unfathomable reason people seem to think we can’t do both of these bills in the same session,” Raskin told the Blade. “As a number of members said to me, we can’t do two gay bills in one session.”
Cue a certain sockpuppet collective in 3…2…1….
ENDAblog 
Well said, Senator Raskin, including repeating someone else’s lazy conflation of gender identity with sexual orientation… though considering the sexual orientations of those that rights are removed from are, by a wide majority, non-heterosexual, yes, this is a gay bill too.
Would that the cisfolk who have taken a shine to you would realize that.