What makes the Donald Trump exclusion from John McCain’s funeral so very bizarre is that their hatred for each other barely rivals the open hostility felt between two other political giants that didn’t interfere one of them from paying tribute to the other.

President Lyndon Johnson hated Sen. Robert F. Kennedy. The feeling was quite mutual. Yet when RFK was gunned down in Los Angeles in June 1968, LBJ found time to deliver a televised statement saluting Sen. Kennedy’s service to the country.

Then he took the time to attend RFK’s funeral in St. Patrick’s Cathedral in New York City.

Sen. McCain made it clear he didn’t want the president to attend his funeral. It would be in the president’s best interests to heed the late, great American war hero’s desire.

The LBJ-RFK rift, though, and the fact that the president paid his respects to the late senator makes this latest statement of mistrust and disrespect so darn strange.