Tuesday, the Supreme Court ruled that Section 4 of the Voting Rights Act, which outlines how the government is to determine which states, counties, towns, and other jurisdictions have to have their voting laws "precleared" by the Justice Department, is unconstitutional. But which jurisdictions currently face preclearance, and, barring Congressional action, are now freed from that requirement? My colleagues at the graphics department put together this excellent map detailing who's affected: