LBJ just walked away and quit. LBJ was was a racist manifest destiny adherent. LBJ could not fathom Asians defying Christian Uncle Sam. LBJ never imagined TV would be so powerful to his own children and Boomers that they refused to participate in Asian Genocide.
Trump on the otherhand is simply deteriorating into oblivion. Trump has been calling press reporters explaining his position as if the press can make Iran stop punishing Trump.