How DID the Office of Legal Counsel get involved in this?

SCHIFF: So you went to the subject of the complaint to see if you should provide the complaint to Congress?
MACGUIRE......basically.

— Michael Barbaro (@mikiebarb) September 26, 2019

Even more interestingly:

Among the concerns voiced yesterday by Trump associates was who in the White House the complaint might implicate https://t.co/doS473nVI5

— Maggie Haberman (@maggieNYT) September 26, 2019

And:

Acting DNI, says he didn't share the complaint with Congress because he believes he had the option under statute of forwarding or not forwarding the complaint to Congress but didn't forward it because of executive privilege issues.

— Yamiche Alcindor (@Yamiche) September 26, 2019

Because President's need to be protected from whistleblowers?