The Trump administration advanced aggressive domestic enforcement and trade maneuvers as its executive actions encountered formal legal and oversight friction. The Department of Homeland Security unveiled a proposed rule requiring universities to pay a $70,000 fee for foreign students seeking Optional Practical Training and $30,000 for subsequent extensions, running parallel to an escalating Department of Justice initiative that has moved to revoke the citizenship of 40 naturalized Americans for omitting criminal records as it pursues 250 cases this month. Concurrently, a Government…