From his remarks to senior staff today:
I will also hold myself as President to a new standard of openness. Going forward, anytime the American people want to know something that I or a former President wants to withhold, we will have to consult with the Attorney General and the White House Counsel, whose business it is to ensure compliance with the rule of law. Information will not be withheld just because I say so. It will be withheld because a separate authority believes my request is well grounded in the Constitution.
Also says he will restore FOIA:
The directives I am giving my administration today on how to interpret the Freedom of Information Act will do just that. For a long time now, there’s been too much secrecy in this city. The old rules said that if there was a defensible argument for not disclosing something to the American people, then it should not be disclosed. That era is now over. Starting today, every agency and department should know that this administration stands on the side not of those who seek to withhold information but those who seek to make it known.