On June 5, Oregon’s legislature voted to become the 16th state to join the National Popular Vote Interstate Compact. The initiative is an agreement among states to give their electoral college votes to the winner of the national popular vote. With Oregon’s adoption, the compact now has 196 electoral votes behind it and it needs a total of 270 electoral votes to take effect, meaning the presidential candidate with the popular vote would theoretically also earn the most electoral votes. All but seven states have introduced a bill in recent years to adopt the Compact.
In the map below, each state is sized according to its number of electoral votes. You can see, for example, that Wyoming has just three votes (fewer people live in the entire state than in the city of Portland) while California’s 40 million residents have 55 electoral votes. Dark green states have signed on to the Compact and light green states have introduced a bill within the last decade.