so mccolloch made a deal with the kennedy administration when he proposed the bill.ou promise not to water this down in the senate, as had been the usual practice, and if you promise to give us republicans equal credit going into next year's presidential election, i'll bring along my republican caucus. and that's just what happened. but could you imagine that happening today? one party removing the single most contentious domestic issue, as a political issue, and working cooperatively? >> ifill: republicans actually, a greater percentage of republicans in the end in the senate voted for it than democrats. >> by far, because the senate democrats were totally divided on the question of civil rights, the southerners, 18 southerners lockstep in unison against any change. and if it weren't for the republican leader everett dirksen of illinois and his colleagues, they could never have achieved cloture and passed the bill. >> ifill: bill mccolloch's partner in all of this was a democrat who was very much unlike him, he was from an urban area, emanuel celler from new york. >