The Wednesday policy reversal of what qualifies as employment discrimination under Title VII of the Civil Rights Act comes down to an idealogical disagreement over whether "sex" is decided by a person's birth certificate, or whether sexual discrimination includes broader gender identity. Title VII prohibits any employment discrimination based on race, color, religion, sex and national origin. Former Attorney General Eric Holder in 2014 interpreted "sex" discrimination to apply to discrimination based on gender identity, while Sessions' DOJ interprets that it only applies to discrimination between men and women. 

Sessions' DOJ argues Holder went beyond the definition of the 1964 law by including transgender discrimination.