This is my nephew-in-law Dominick Washington, married to my niece Summer. As you can see, Dominick is standing with Michelle Obama.
Mrs. Obama was campaigning on behalf of her husband in Minnisota. Dominick is the political director of Obama's campaign in that state, so it fell to him to introduce Mrs. Obama at various gatherings.
While the larger family is politically split, it's safe to say everyone is proud of Dominick's position in Obama's campaign.