CNNW CNN Newsroom November 22, 2011
top of the hour. chances of the downgrade after the supercommittee failure. and a great excuse to pour yourself an extra cup of coffee. mark preston, live for us at washington, d.c., the home of the cnn debate tonight. >> the republican and constitution hall in the heart of washington, d.c., we are just steps away from the white house. these candidates are focusing on trying to sell themselves on a very, very key issue. that is national security. an issue that has not really been discussed a whole lot, brooke, so far in this campaign n addition to that, they are going to talk about...