Steve Silberstein, a supporter of the National Popular Vote plan, has this comprehensive article about the plan in Washington Monthly. Although the arguments for and against the plan tend to be repeated, this article is especially useful because of the extensive data about how battleground states get more federal government support than other states. Also the article has useful data about the overwhelming extent to which national major party presidential campaigns focus only on the battleground states. And it rebuts the idea that the current system was the choice of the founding fathers, by pointing out that in the first presidential election, 1789, only three states used the system we use today.

The article does not mention which states those were, but they were Maryland, New Hampshire, and Pennsylvania. Thanks to Michael Ochs for the link.

Peter Gemma has this article in Daily Caller, describing how top-two systems work in practice.

For many years, the New Mexico Secretary of State’s web page has been showing voter registration data only for the Democratic and Republican Parties, instead of all the qualified parties.

However, the Secretary’s web page now lists all qualified parties. The five qualified parties in New Mexico now are Democratic, Republican, Libertarian, Green, and Better for America. Better for America is the group formed to help Evan McMullin get on the ballot. Because McMullin polled over one-half of 1% for president in New Mexico, his party is still on the ballot. Thanks to Angel Espinoza, from the Secretary of State’s office, for this information.

States which sometimes post voter registration data on their web pages for some parties for which data exists, but not for all of them, are Connecticut, Florida, Iowa, Massachusetts, Nevada, New York, and Pennsylvania. BAN recently tried to persuade Iowa to make the sort of improvement that New Mexico has just made, but Iowa Secretary of State has not agreed.