By Andrew Chung WASHINGTON (Reuters) -The Supreme Court on Thursday agreed to hear a Republican bid to reinstate a map delineating North Carolina’s U.S. House of Representatives districts that was invalidated as unfair to Democrats in a major case that could expand the power of politicians over the conduct of elections. The justices took up an appeal by the Republican state lawmakers of a February decision by North Carolina’s top court to throw out the congressional map approved last year by the Republican-controlled state legislature. The North Carolina Supreme Court determined that the bound…