http://www.ncsl.org/research/labor-and-employment/state-family-and-medical-leave-laws.aspx

There was a NPR radio program segment I heard today, but this is from April:

http://www.npr.org/sections/health-shots/2015/04/22/401239857/is-it-time-to-make-medical-and-family-leave-paid

NPR did mention an article in the June New Republic. Maybe this is informative:

http://www.newrepublic.com/article/121910/josh-levs-interview-author-all