Possible Clues:

• Board game with a spymaster
• Agents' aliases
• Renegade and Renaissance, for the Obamas
• Celtic and Capri, for Joe and Jill Biden
• Word game involving agents, a spymaster and an assassin
• Utah, Omaha and others, on D-Day
• Indicators of intelligence?
• Manhattan Project and Operation Overlord
• Project handles