My twitters are currently all lit up because Donald Trump apparently refused yesterday to explicitly renounce his previous and longstanding support for the crazy notion that President Obama is not a US citizen.
Here is my prediction. Trump will continue playing cute and coy on this topic until the debates. There, when pressed on the question of whether he believes all his birther nonsense, he will give some sort of weaselly response that allows him to wiggle out of it. The moderators, the broader punditocracy, and the media will shrug their shoulders and move on.
The other possibility is that he will flat-out deny he ever pushed the idea or claimed that the president is foreign-born.
Either way, he will be congratulated on his pivot.