'Nonbinary and transgender people are some of the bravest Americans I know'
Challenges come despite bipartisan interest in addressing the problem
Nonbinary Okla. teenager died earlier this month
26 Democratic members signed the letter
President Joe Biden has vowed to block homophobic, transphobic bills
Members seek info from Sec. Austin by March 1
Pelosi, Equality Caucus celebrate the milestone
President notes 26 trans Americans have been murdered in 2023
163 House members wrote to Biden over 'hijacked' appropriations process
'It is vital to remember our collective past'
