[Yosemitest]

It depends on the allegiance of the Secret Service Agents on hand at the time.
Once the Newly elected President is sworn into office, the SS Agents' oath is to the Constitution, and not to the ILLEGAL ALIEN IN CHIEF defying that Constitution.

[Pollster1]

It depends on the allegiance of the Secret Service Agents on hand at the time. Once the Newly elected President is sworn into office . . .

I think it happens when a real president is supposed to be sworn in, whether or not Obama wants to permit elections or an Inauguration. At noon on January 20, 2017, if Obama is not leaving voluntarily, I assume one or more Secret Service agents will "explain" to the communist that he is no longer Community-Organizer-in-Chief and it is time to go.