Welcome to the Election Shuffler! Select a state to get started, and then select whatever county or counties you’d like to shift. From there you can adjust their margin and turnout, seeing the statewide margin change in real-time. Once you’re satisfied, you can zoom back out and see how your changes have affected the country as a whole. You can also edit in full-screen by clicking this link.
Update: We’ve made some major adjustments to The Election Shuffler! Learn about all the big changes here. An archived version of the original tool can be found here.