With a major lawsuit seeking to strike down Georgia's new elections law, the U.S. Justice Department started a long and difficult voting rights fight that will reverberate in political campaigns while winding its way through the courts. The lawsuit will face a treacherous path after the failure of a sweeping election bill backed by Democrats in the U.S. Senate and the passage of voting bills in Republican-held state legislatures across the country. The case was filed Friday, the eighth anniversary of a U.S. Supreme Court decision that scaled back the Voting Rights Act, the landmark civil right...