This question resolves YES if Donald Trump is impeached by the House of Representatives, and 

 removed from the office of the US presidency.

For that to happen, the House of Representatives would need to pass articles of impeachment, 

 the Senate would need to vote to convict Donald Trump by 2/3rds majority. A vote to convict immediately removes the President.

This question resolves NO if impeachment and removal does not occur and it is 21 Jan 2029, or if Donald Trump ceases to be US President for other reasons (e.g. death, resignation).