Forty States Used to Allow Non-U.S. Citizens to Vote, Per Professor Hayduk

AXIOS -- San Francisco is about to become the largest U.S. city to allow noncitizens, including undocumented immigrants, to vote in school board races, reports the Associated Press.

Flashback: Forty states had allowed noncitizens to vote in local and federal elections from 1776 until the 1920s, according to Ron Hayduk, a political scientist at San Francisco State University.