I.R.S. REVOKES NONPROFIT STATUS FOR 275,000 ORGANIZATIONS — including the University of Michigan and George Washington University? “In the case of George Washington, for example, officials think the IRS meant to list a student group, says Candace Smith, a university spokeswoman. She noted that the IRS gave a federal employer identification number that did not match the university’s. . . . The University of Michigan’s identification number also did not match, another sign of a mistake.”