"Our signature collection effort may have fallen short, but we stand tall as being the only statewide campaign that fought for repealing Proposition 8 in 2010," Sean Bohac, Chair of the Restore Equality 2010 Statewide Advisory Panel, said in a statement reported by the Sacramento Bee.

Both Restore Equality 2010 and Love Honor Cherish are now expected to join with Equality California and other LGBT groups in an all-out effort to repeal Prop 8 in 2012, a presidential year when more young voters are expected to turn out. Generally off-year elections bring out older voters who have not favored same sex marriage.

"Regrettably, Prop 8 will remain as a stain on our constitution until at least 2012, and perhaps later," said Henning, who also encouraged other activists to get involved and unify around 2012.