News: Nation Obama to name national security aide Denis McDonough as chief of staff January 25, 2013 | Modified: January 25, 2013 at 10:15 am Leave a comment WASHINGTON (AP) — Obama to name national security aide Denis McDonough as chief of staff. Sign Up for the Daily E-dition newsletter! Please enter your email address below to begin receiving the Daily E-dition newsletter. You must enter a valid email address in the field above! Thank you for signing up for the Daily E-dition newsletter! You should receive your first newsletter very soon. We're sorry, there was an error processing your newsletter signup. Please click here to visit our Newsletter Signup Center to register for this newsletter.