“America has a new political reality: Republicans’ generations-long grip on Southern politics has been torn apart,” the Wall Street Journal reports.“Sweeping through the states of the old Confederacy, Democrats dismantled decades of GOP dominance in one night. They won Senate seats in North Carolina, South Carolina and Virginia while capturing both the Senate races and governor’s mansions in Georgia and Texas. Throughout the region, down-ballot state offices and legislatures long held by Republicans flipped blue.”“Even Mississippi, which last elected a Democratic senator in 1982, remains in play. Democrat Scott Colom is locked in a tight race with Republican incumbent Cindy Hyde-Smith that few saw coming.”