Prior to the 1964 presidential election, President Johnson held back from escalating the war in Vietnam, knowing that it might affect the outcome of his ambitious domestic agenda.
As this cartoon suggests, LBJ's ambitious domestic agenda of civil rights, the "War on Poverty" and "the Great Society" was by 1966 being undermined by the economic and human cost and the popular discord generated by the Vietnam War.
At the time of publishing, March 31, 1966, Johnson had just signed an appropriations bill that provided $13.1 billion in funding for the Vietnam war effort. Consequently, he had to trim the financing of his Great Society domestic programs.
As the Vietnam War escalated, containing China became a justification for increasing troops and supplies to South Vietnam.
At the beginning of 1968, President Johnson appeared poised to run for an easy reelection