What do you call defining gender at birth? If you are Sen. Elizabeth Warren (D-Mass.) the answer is “discrimination.”

The Trump administration is considering legally defining gender as based on biological sex at birth, unless rebutted by reliable genetic evidence. When asked about this move Warren responded that it would make discrimination more “available.”

“The Trump administration is trying to make discrimination more available all across the country,” Warren told MassLive, “This is just fundamentally wrong. This is not who we are as a country, it does not reflect our best values, I will fight them on this, I will fight for anti-discrimination provisions."

The New York Times reported the U.S. Department of Health and Human Services wants to establish a legal definition of sex under the federal civil rights law that bans gender discrimination in federally funded education programs. The uniform definition should be, “clear, grounded in science, objective and administrable," according to the HHS memo obtained by the Times.