“The Southern bloc in Congress drew up a ‘Declaration of Constitutional Principles’ (otherwise known as the Southern Manifesto) voicing opposition to Brown [vs. Board of Education]….
“Two of the North Carolina congressmen who declined to sign the manifesto, Charles Deane and Thurmond Chatham, were defeated in the Democratic primary in May 1956…. The state’s third nonsigner, Harold Cooley, survived by campaigning against the court decision….
“The defeat of Deane and Chatham drew headlines across the country….The lessons were clear enough. Question segregation, and you would be severely punished by the voters.”
— From “The Paradox of Tar Heel Politics” by Rob Christensen (2008)
“In the  North Carolina governor’s race, approximately 97 percent of black voters preferred segregationist Democrat Dan K. Moore to his integrationist Republican opponent, Robert L. Gavin. As Gavin explained, ‘This I believe was because of the determination of the Negro race to defeat our [Goldwater-Miller] national ticket.’ ”
–– From “Rule and Ruin: The Downfall of Moderation and the Destruction of the Republican Party, From Eisenhower to the Tea Party” by Geoffrey Kabaservice (2012)
As a two-time gubernatorial candidate in the early ’60s, Gavin may have qualified as a situational moderate — but “integrationist”?
Rob Christensen notes in “The Paradox of Tar Heel Politics” that when running against Terry Sanford in 1960, Gavin had “said if the Democrats were elected, Congressman Adam Clayton Powell — the only black in Congress — would try to integrate every public school in North Carolina.”