How do you know if the president is in the White House?

Answer 1

If the flag on top of the White House is raised, that means he is in office.

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This is a tradition taken from the various European Monarchs, and is a formality, not a hard and fast rule.

In reality, the President's exact location at any time can be a carefully held secret (and others, not so much). So, take the flag positioning as a guide, not an actual verification of residence.

Answer 2

more security You're not really supposed to know because if we all did know then it would easy to target the president for assasination or bombing.

Answer 3

You don't. We aren't like the Queen when she is in a flag flies.