WASHINGTON (AP) — Republicans are preparing an all-out assault on a sweeping voting rights bill from Democrats. They plan to force dozens of politically difficult votes during a hearing Tuesday that will spotlight an increasingly charged national debate over access to the ballot. The bill as written would bring about the largest overhaul of U.S. elections in a generation. Democrats say the changes are even more important now as Republican-controlled states impose new voting restrictions. Yet it’s a motivating issue for Republicans as well. They plan to argue against public financing for congressional campaigns and an overhaul of the federal agency that polices elections.