A group 47 alumni from Florida International University College of Law have signed a letter asking Alex Acosta to resign as President Donald Trump’s secretary of labor, arguing that the former FIU dean’s legacy of good work at the law school and as U.S. attorney in South Florida will be tarnished by his continued association with Trump.

While the FIU community generally gives Acosta high marks for the seven years he served as dean, the group is unhappy with his silence regarding President Trump’s hardline stance on immigration and controversial statements on race.