Prince William will be greeted by President Biden on the final day of his trip to Boston.
The Prince and Princess of Wales are in the northeastern city to announce the winners of the Earthshot Prize.
The couple’s three-day visit has been overshadowed by the Buckingham Palace race row, and the surprise release of Harry and Meghan’s Netflix trailer.
Both events have eclipsed engagements carried out by William and Kate, who are in the US for their first overseas visit since the death of the Queen.
The Princess of Wales is spending time at Harvard University.
She will visit the world renowned Center on the Developing Child as part of her efforts to promote the importance of early years care.
Sources close to the princess said she is “passionate” about the subject and has been hoping to visit researchers at Harvard for some time.