Earlier this week, Maine Gov. Janet Mills (D) decided not to veto an obscure law called the National Popular Vote Interstate Compact (NPV), which calls for the state's 4 Electoral College votes to be awarded to the presidential candidate who gets the most votes nationally regardless of the outcome in the state. The law doesn't go into effect, however, until states totaling 270 electoral votes join the compact. That's the number of Electoral College votes required to win the presidency. Once dismissed as an unworkable, almost farcical fantasy, the NPV just tallied its 209th electoral vote with Maine, and now...