Andrew Morgan at the Federalist writes:
The National Popular Vote bill would guarantee the presidency to the candidate who receives the most popular votes in all 50 states and the District of Columbia. It has been enacted by 15 state legislatures plus Washington, D.C., and passed in 41 legislative chambers in 24 states. For the proposal to become the law of the land, enough states totaling at least 270 electoral votes would be required to enact the law, and states would then commit their electoral votes to the candidate with the most popular votes nationally, regardless of which candidate won at the state level.
The states that have enacted the compact represent 195 electoral votes: Delaware, Hawaii, Rhode Island, Vermont, Colorado, Connecticut, Maryland, Massachusetts, New Jersey, New Mexico, Oregon, Washington, Illinois, California, New York, and the District of Columbia. States with passage in one chamber include Arkansas, Arizona, Maine, Michigan, Minnesota, North Carolina, Nevada, Oklahoma, and Virginia. Successful passage in all of these states represents 283 electoral votes, enough to change the law and make our presidential election decided via popular vote rather than the Electoral College.