President Trump did leave a note for his successor, Joe Biden, according to a person familiar with the matter. The contents of the note weren't immediately clear. One of the modern Inauguration Day traditions for presidents leaving office is to write their successors a letter offering best wishes and advice. This is usually left on the Resolute Desk to read when the new president first enters the Oval Office. Melania Trump left a "short note of welcome" for Jill Biden, a source familiar with the matter tells CNN. It's unclear where it was left or its exact contents.