...State Supreme Courts began changing the landscape with the Connecticut Supreme Court ruling on September 10, 2008 with it's ruling on the case of Kerrigan v. Comissioner of Public Health. This began a rapid flood of state Supreme Court Rulings in diverse states such as Iowa (Varnum v. Brein) 2009. While state Supreme Courts are declaring state constitutions allow for same sex marriage state legislatures are passing laws that allow it and Governors are signing it into law. The question of whether the marriages will be recognized and whether states have the right to refuse recognition becomes a growing issue. By 2012 it became obvious that the issue would have to be settled by SCOTUS.
1. the challenge was issued to whatshizface, not you
2. he failed
3. you merely serve-up a chronology of various case-outcomes.
4. you serve-up no new "fact" or "information", unknown to Obama in 2008, that would warrant him changing his mind, between 2008 and 2015, in the context of this challenge to defend a claim
"Fact" and "information" of a substantive nature, sufficient to warrant such a change of mind.
Otherwise, it is entirely appropriate - even wise - to assume that Obama held this opinion all along, and that he deceived the American People into believing otherwise, in his 2008 pronouncements.
Translation: The guy lied his ass off, about his position on all this; one of several lines of bullshit he served-up, in the process of getting himself voted into power.
One more reason not to trust him overly much, and to look forward to January 20, 2017.