If they want to believe that's the reason President iWON and MEchelle weren't invited to the Princes' wedding.
Palace officials said that only crowned heads of states are traditionally invited to royal weddings, and that political leaders who are not from the 54-member Commonwealth of nations, such as President Barack Obama or French President Nicolas Sarkozy, weren’t sent invitations.
Unless you know how to operate a search engine.
Q: Why did president reagan not go to diana's wedding?
A: Prince Charles and Princess Diana invited then President Ronald Reagan and his wife Nancy to their 1981 ceremony - though she came alone because the President was too ill to travel following an assassination attempt on him. Mrs Reagan also attended the wedding of Prince Andrew to Sarah Ferguson in 1986.