 Three weeks before the election, Yankelovich, Skelly and White produced a survey of 1,632 registered voters showing the race almost dead even, as did a private survey by Caddell.Two weeks later, a survey by CBS News and the "New York Times" showed a similar situation.Although some pollsters reported a slight Reagan lead, ABC News-Harris surveys consistently gave Reagan a lead of a few points until the climactic last week of October.