Zambia’s presidential race tightened sharply on Saturday as overnight counting yielded big wins for incumbent President Levy Mwanawasa, spurring his main rival to warn of “ghastly consequences” if any poll fraud was detected, newspapers said. Populist opposition leader Michael Sata had staked out a solid lead in the polls on Friday, amid tensions more than 24 hours after polls closed. But political observers had said the final result could remain close. Full Story