More than 50 universities are being investigated for alleged racial discrimination as part of President Donald Trump’s campaign to end diversity, equity and inclusion programs his officials say exclude white and Asian American students.

The group of 45 universities are allegedly tied to the PhD Project, a professional development organization for PhD students that allegedly limits eligibility based on race.

The Education Department announced the new investigations, one month after warning America’s schools and colleges that they could lose federal money over “race-based preferences.”