A federal judge ruled Monday it was illegal for the Trump administration to cancel several hundred research grants, adding that the cuts raise serious questions about racial discrimination. U.S. District Judge William Young in Massachusetts said the administration’s process was “arbitrary and capricious” and that it did not follow long-held government rules and standards when it abruptly canceled grants deemed to focus on gender identity or diversity, equity and inclusion. In a hearing Monday on two cases calling for the grants to be restored, the judge pushed government lawyers to offer a formal definition of DEI, questioning how grants could...