DEMOCRATIC UNIT LAYS RACIAL BIAS TO MISSISSIPPIANS; Finding May Insure Seating of Integrated Rebels at Convention in Chicago RATIFICATION IS AWAITED Major Clash Is Developing on Proper Way to Handle the Credentials Issue Democratic Unit Charges Bias To Regulars From Mississippi
McCarthy forces want to bar all challenged delegates until their cases are settled; Repr J G O'Hara, Humphrey backer, charges aim is to block 'hundreds of Humphrey delegates from exercising their conv rights
