President Pretend

at best he can only be called, "Projected" president elect.

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Ok. He still won though.

Not til the electors vote

The electors vote the way the voters tell them to vote. And Biden won that vote.

At the moment.

Yup. Same as the next moment. And the moment after that. And the moment after that.

On and on for four years.

Actually the electors are free to vote however they want, but they traditionally (and by law in some states) vote the way of the voters in their state.