It's remarkable how America has in many cases made a quiet turnaround on the death penalty; circumscription of the death penalty against minors and those with mental or cognitive impairments over the last ten years; several states have abolished after a long post-Gregg period of retention (New Jersey, New York, Illinois, Maryland, New Mexico, Connecticut); others have suspended the penalty without abolishing (North Carolina, California, Oregon, Arkansas, Washington, possibly Oklahoma soon)l others are facing largely successful legal challenges (Nebraska, Kentucky, now California); the European export ban on thiopental; the failure of the Ohio injection cocktail.
Of course this does not imply fewer executions, as most of these states rare or never executed. Half of all post-Gregg executions in the US took place in Texas, Oklahoma, or Florida. California is notable because of its enormous death row (750 people), but factually rarely executed anyone to begin with (13 since Greg) and has had a de facto moratorium for some time now (compounded by the fact that Jerry Brown is a devout Catholic and I suspect would not sign a death warrant).
Finally, of those states that voted for Obama in 2012, only the following maintain the death penalty actively (no current bar to executing people, has executed people post-Gregg):
Delaware - No executions in last 2 years, 3 in last 10 years
Florida - 15 executions in last 2 years, 29 in last 10 years
Ohio - 6 executions in last 2 years, 38 in the last 10 years
Nevada - No executions in last 2 years, 2 in last 10 years
Virginia - 1 execution in last 2 years, 17 in last 10 years.
Given that both Nevada and Delaware seem unlikely to move to execute anyone any further, and the three remaining states are Obama's narrowest wins, we are quickly approaching a position where only Republican states execute people. This is maybe something worth considering, not because it is inherently right or wrong, but rather because it suggests that the use of execution has become a partisan issue rather than a neutral and agreed upon method of punishment.