On February 17, the New Mexico State Senate passed HB 138 by 24-16. It says if a citizen will be age 18 by the time of the general election, he or she can register to vote in the primary, even though the person would only be age 17 at the time of the primary. The bill had passed the House on February 8 by 41-26. The bill would not take effect until 2017. See this story.
Can they run for office, too? http://www.npr.org/sections/itsallpolitics/2014/05/15/312494574/meet-the-high-school-student-who-beat-a-state-lawmaker
Isn’t that law already nationwide? Indiana had it in 1976.
Michael,
Nope. Oklahoma does not allow anyone under 18 to vote.