History dictates that Obama will declare "executive privilege" or some other nonsense
So he'll be like George Bush? After all, the previous administration used every trick in the book to prevent the public from knowing what the White House was doing such as claiming he needed "unbiased" information which is why he refused to turn over the visitor logs when meeting with oil executives on U.S. energy policy, or claimed that by not opening emails they weren't "read" and so the contents didn't have to be turned over to investigators, the public or even backed up for historical purposes.
And let's not forget Bush (and Vice-President Cheney) avoided every single Congressional request to testify on the failings of his administration to prevent the 9/11 attacks, including refusing to hand over every document requested by the 9/11 Commission except for one page, heavily redacted, which had the title, 'Bin Laden Determined to Attack the U.S.".
So if you're saying Obama will declare "executive privilege" or some other nonsense, we can safely assume he is following the example of his predecessor