My home state of Washington exclusively uses mail-in ballots. (There are dropboxes if you can't afford a stamp.) Our voter participation rate in the 2012 election was about 60% of voting-age population, compared to about 55% listed for the same year in the article. The 2014 election participation rate was just under 40%, which is quite a bit higher than the 30% listed for California, but still very low.
You can't make this any easier, and half the state still does not vote.
You can't make this any easier, and half the state still does not vote.
My Washington statistics come from: http://www.sos.wa.gov/elections/voter-participation.aspx