The US education department is investigating one of the country’s largest women’s colleges over its admittance of transgender women in another escalation of the Trump administration ’s attacks on trans people. The department’s office of civil rights announced the investigation on Monday in a press release , saying the Massachusetts college could be violating federal law by “allowing biological males into women’s intimate spaces”, including dorms, bathrooms, locker rooms and sports teams. Title IX, the federal law that seeks to prevent sex-based discrimination in education and extracurriculars, includes an exemption for all-male or all-female colleges. But, the department said, that applies only to “biological sex difference, not subjective gender identity”. Admitting transgender students would mean the college no longer qualifies as single sex. “An all-women’s college loses all meaning if it is admitting biological males,” assistant secretary for civil rights, Kimberly Richey, said in a statement.…