Karen Donfried ’94 will become the president of the German Marshall Fund in April, a role for which she was unanimously elected. She’s currently a special assistant to President Obama and senior director for European affairs on the National Security Council at the White House. She advises the president on European matters and leads the development and implementation process of his European policies. "I am very pleased that Karen is returning to GMF to take on its leadership," said current GMF president Craig Kennedy, in a press release. Kennedy is retiring after 19 years at the helm. "I am very…