Education Secretary Miguel Cardona refused on Tuesday to define a “woman” under oath at a congressional hearing.

At a House Appropriations subcommittee hearing, Rep. Andrew Clyde (R-Ga.) highlighted that Cardona’s job includes enforcing Title IX, which prohibits discrimination — including on the basis of sex — in education programs that receive federal funding. But the Biden administration is seeking to alter Title IX to punish states that protect the integrity of women’s sports by prohibiting transgender athletes from competing in women’s sports.

“Since Title IX prohibits discrimination between male and female to ensure that each gets appropriate funding, I think it’s important that the country sees that [the government] understands the difference,” Clyde began.