Below the electoral map on our site, there's a feature you may have seen called "The Road to 270". This feature calculates the number of 'critical path' combinations to 270 that remain for either party based on the undecided states in your map, as well as any possible tie combinations. It updates automatically each time you change the status of a state.
By critical path, we mean those combinations that are available to cross the required 270 electoral votes threshold. To take a simple example, let's say Obama has 262 electoral votes on your map, and the only two undecided states are Virginia (13 electoral votes) and New Hampshire (4 electoral votes). While there are two overall combinations there (VA or VA+NH), only one of them is relevant to our goal of 270. Put another way, if you were managing the Obama campaign in this scenario, how much resource would you devote to winning New Hampshire?
The new features include the following:
The Road to 270 also calculates tie scenarios that are possible with your map. Every remaining state is involved in a tie scenario, of course. The Ties page shows each possible tie scenario and how the states break out between Obama and Romney. These tie scenarios are not in any particular order at this time.
The Road to 270 feature appears when 12 or fewer states remain undecided on your map and neither candidate has reached 270 electoral votes.
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