WASHINGTON, May 19 (UPI) -- A senior White House aide said Sunday it was appropriate for President Barack Obama not to become involved in an investigation of the Internal Revenue Service.
Appearing on CNN's "State of the Union" Sunday, senior adviser Dan Pfeiffer said it is a "cardinal rule when you know a situations like these, not for just for this White House but for all White Houses ... you do not interfere in an independent investigation and you do not do anything to give off the appearance of interference in an independent investigation."