The National Popular Vote proposal is doomed if even only one state rejects plurality voting for president

The Electoral College system used to elect US presidents can sometimes lead to the candidate with the most electoral votes gaining the White House without the support of a plurality of those who voted. Richard F. Potthoff looks critically at a proposed alternative way of electing the US president, the National Popular Vote plan, where all states in an interstate compact which cover 270 or more electoral votes would cast their electoral votes for the candidate who won the nationwide vote, no matter who wins their state. He writes that despite its advantages over the Electoral College, the National Popular vote plan breaks down if one state uses a different voting system from plurality voting – as Maine does, and Alaska will soon do.