In 1964, frustrated by their inability to travel together to visit their families in Virginia, as well as their social isolation and financial difficulties in Washington, Mildred Loving wrote in protest to Attorney General Robert F. Kennedy. Kennedy referred her to the American Civil Liberties Union (ACLU). The ACLU assigned volunteer cooperating attorneys Bernard S. Cohen and Philip J. Hirschkop, who filed a motion on behalf of the Lovings in the Virginia Caroline County Circuit Court, that requested the court to vacate the criminal judgments and set aside the Lovings' sentences on the grounds that the Virginia miscegenation statutes ran counter to the Fourteenth Amendment's Equal Protection Clause.