AP
FILE - In this April 22, 2016 file photo, President Barack Obama and first lady Michelle Obama are greeted by the Duke and Duchess of Cambridge and His Royal Highness Prince Harry of Wales, shaking hands with the president, as they arrive at Kensington Palace in London. US President Donald Trump has wished Prince Harry and fiancee Meghan Markle well and says he is not aware of having received an invitation to their royal wedding in May. (AP Photo/Carolyn Kaster, File)