26 Democratic members signed the letter
The bill is now backed by more than 60 senators
Tom Suozzi's victory bolsters Democratic optimism ahead of November elections
President Joe Biden has vowed to block homophobic, transphobic bills
Bill intro'd by Sen. Tommy Tuberville (R-Ala.) and Rep. Gregory Steube (R-Fla.)
Conduct was not illegal
Male staffer was an aide for Sen. Ben Cardin
President says GOP 'focused on attacking me with lies'
Legislation introduced by Sens. Padilla, Gillibrand and Rep. Torres
California congressman to resign at the end of this month
