For some presidential families, one animal just isn't enough! With just days until the Obamas enter the White House – and labradoodle or Portuguese water dog seeming the likely addition – I've found some pictures of pets who've all already sniffed the inside of the White House . . . just at different times. To make it doubly tricky (or one-half as hard), I'm asking you to name both of the pets pictured in each question. Don't worry, the pups shown together belong to the same president's household – so can you recall the name of not one, but two?

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