Hamburger Mary's in Orlando, which has held drag performances since 2008, is asking the court to block the implementation of the state's new law, which the governor signed last week.
Under a new dress code issued by Texas Agriculture Commissioner Sid Miller, department employees are expected to comply "in a manner consistent with their biological gender."
The shooting, which occurred on the eve of Transgender Remembrance Day, is the latest tragedy in a year that's felt particularly bleak, according to LGBTQ advocates.