President Obama has finally endorsed same sex marriage, after having been maneuvered into this position by his vice president, Joe Biden. As usual with the president, his announcement of this latest step in his "evolution" on this issue appears to be the product of cold political calculation, rather than conviction.

Evidently, the president decided that there is less political risk for him in infuriating right wing bigots who hate gays (and evolution) but would never vote for him anyway, than in contradicting his own vice-president, which would lead to endless Republican campaign adds exploiting their difference. This might even have led to Obama's being forced to dump Biden as his running mate for re-election, thereby angering the Democrats.

So now that the president has finally "evolved", we will soon be seeing green cards issued to immigrant spouses in same sex marriages, right? I, for one, am not holding my breath.