ATLANTA (AP) — Critics of Georgia's new Republican-backed election law issued fresh calls Monday to boycott some of the state's largest businesses for not speaking out more forcefully against the law, a day after advocacy organizations filed a lawsuit in federal court challenging it.

In a letter to more than 90,000 parishioners, Bishop Reginald Jackson, who presides over more than 400 African Methodist Episcopal churches in Georgia, said the law is "racist and seeks to return us to the days of Jim Crow."

Jackson is calling for corporate leaders at companies like Coca-Cola and Delta Air Lines t...