BIG LEAD FOR NIGERIA PRESIDENT.(MAIN)

Byline: GLENN McKENZIE Associated Press

LAGOS, Nigeria -- President Olusegun Obasanjo easily led his main challenger in early returns Sunday from presidential elections marred by scattered violence and allegations of fraud.

With more than 14 million votes counted in 21 of Nigeria's 36 states and the federal capital territory, Obasanjo had 69 percent of the votes compared with 26 percent for Muhammadu Buhari, a former ally. Opposition …