The last 24 hours were Oliver North's latest turn at being a punching bag in the gloves-offVirginia Senate race. Late Thursday in New York, former First Lady Nancy Reagan laid into the Iran-contra figure-turned-Virginia GOP Senate contender: "I know Ollie North has a great deal of trouble separating fact from fantasy. And he lied to my husband and lied about my husband, kept things from him that he should not have kept from him . . . " North praised Ronald Reagan's presidency as the "greatest" of his lifetime and said he didn't want to "get into a fight with a lady." Today, Vice President Al Gore began Round Two with his second jab at North in as many weeks, calling him a "pathological liar" and disgrace to the Marine Corps.