Polygamists are not a "class" for the purposes of Fourteenth Amendment EP analysis

Just because somebody might be interested, here are some handy pages about equal protection and the question of the right to marry:

http://law2.umkc.edu/faculty/projects/ftrials/conlaw/epcscrutiny.htm

http://law2.umkc.edu/faculty/projects/ftrials/conlaw/rationalbasiswbite.htm