San Francisco Chronicle, Nov. 1, 2008 by Bob Egelko
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/10/31/MNOU13P1GT.DTL&tsp=1
UC Berkeley law Professor Jesse Choper said the court might well conclude that retroactively nullifying a marriage would violate a couple’s right to due process of law or violate the constitutional ban on interference with contracts.