Testifying before the Nevada Senate Committee on Legislative Operations and Elections, Save Our States' Trent England points out that one organization supporting National Popular Vote actually elects its president using, well, basically an electoral college of its own.

Save Our States Executive Director Trent England testified at a Connecticut legislative committee about the importance of the state-by-state presidential election process.

"The Electoral College and Direct Election"
Professors Herbert Storing and Martin Diamond
U.S. Senate Judiciary Committee
July 22, 1977

This PragerU video from author Tara Ross explains what the Electoral College is, how it works, and why America uses it to elect its presidents instead of just using a straight popular vote.

Save Our States Executive Director Trent England speaks at Hillsdale College on the Electoral College.