At one point it was mentioned that The Palace would perhaps send an invitation through Biden, who could form a contingent of his choosing to go to London for the funeral - A contingent that may or may not have included DJT. However, in the end, personal invitations were sent directly to Joe and Jill Biden, so no 'contingent'. Also, while even the leader of North Korea was invited, not all countries' leaders were.The ex-pres had expected to be invited to the London funeral, but there's not enough room in Westminster Abbey: