Breaking: Gibson to Anchor ABC’s World News Tonight

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ABC News has announced that Charles Gibson will be sole anchor of its evening newscast. His new assignment will take effect on May 29. He will continue as a co-anchor of Good Morning America until June 30. Current anchor Elizabeth Vargas will step down from the post for maternity leave. Her co-anchor, Bob Woodruff, is still recovering from injuries sustained while he was reporting from Iraq in January.