Our current state borders are fairly arbitrary. Throughout American history, people have been proposing new states, but most don't appear on the map today, either because they once existed but were later redrawn, or because they simply never caught on. But what if some of these would-be states were around today? Would moving those state borders, without changing any votes, change our political reality?
FiveThirtyEight is quite fond of this kind of alternative-scenario visualizations and simulators. These are some of my favorites: The Atlas of Redistricting, Should You Get Married (or Divorced) for Tax Reasons, and Hack Your Way To Scientific Glory, which allows you to p-hack like a pro.