Rudy Giuliani portrayed himself as the heir to Ronald Reagan at the first Republican debate last night, talking tough on terrorism - but struggling to present a clear and consistent position on abortion. Giuliani, who strongly supported abortion rights during his eight years as mayor, said he would not object to the U.S. Supreme Court overturning the 1973 Roe vs. Wade decision affirming abortion. "It would be OK to repeal it," said Giuliani, who is courting key anti-abortion voters in the GOP primaries. But he then added that "it would be OK also if a strict constructionist viewed it as...