The squad's activities also included wiretaps of Martin Luther King's room as well as the Student Nonviolent Coordinating Committee (SNCC) and the Congress of Racial Equality (CORE). From beginning to end, the squad's assignment was carefully couched in terms of the monitoring of disruptive activities that might endanger the president and other high-ranking officials.[143]

1964 presidential election results
Johnson was very concerned about potential political damage from media coverage of racial tensions exposed by a credentials fight between the MFDP and the segregationist delegation, and he assigned Humphrey the job of managing the problem.[144] The convention's Credentials Committee declared that two MFDP delegates in the delegation be seated as observers and agreed to "bar future delegations from states where any citizens are deprived of the right to vote because of their race or color".[145] The MFDP rejected the committee's ruling. The convention became the apparent personal triumph that Johnson craved, but a sense of betrayal caused by the marginalization of the MFDP would trigger disaffection with Johnson and the Democratic Party from the left; SNCC chairman John Lewis would call it a "turning point in the civil rights movement".