Leo, a biologically male employee of Delta Dismantlers, Inc., an auto salvage yard in California, planned to have a gender reassignment surgery but was terminated by his employer for wearing feminine attire after being told that the attire violated the company dress code. Leo wants to sue Delta Dismantlers for wrongfully discharging him.

Are there federal discrimination laws that apply? Are there state discrimination laws that apply? Are there other laws that apply that might provide Leo with a cause of action?