DEMOCRATS Schism on the Left Eugene McCarthy's presidential challenge may not sunder the Democratic Party, but it has caused some damaging cracks in the liberal coalition of intellectuals and labor and civil rights leaders who make up the Americans for Democratic Action. Last week, after the A.D.A.'s board voted, 65 to 47, to endorse the Minnesota Democrat's campaign against the President, seven of its prominent members angrily resigned.
With more fervor than felicity of style, John Roche, the White House's staff intellectual, declared: "The A.D.A. has backed away from the nonsupport of...