Our interactive map shows FiveThirtyEight's Voter Power Index for all 50 states. A vote in states that are colored in a darker shade of green are more likely to affect the outcome of the election. Hover over the map to see the Voter Power Index for each state.

According to FiveThiryEight: Two measures help capture how important a state and its voters will be in determining the next president: “Tipping-point chance” is the probability that a state will provide the decisive vote in the Electoral College. “Voter power index” is the relative likelihood that an individual voter in a state will determine the Electoral College winner.
Interactive by Lucy Zhang | The Chronicle