 Well, he was being challenged by members of his own party, notably Eugene McCarthy and Robert Kennedy, who were trying themselves to get the nomination. And on March 31st, 1968, LBJ made an announcement to the country in which he said he wouldn't accept the nomination of the party. And it played out that the other members of the party vied for the nomination. Ultimately, it went to Hubert Humphrey, who lost the election narrowly to Nixon later that year.