Atrios Asks: What's Behind the Tie?

I noticed this the other night when I was standing right next to the large TV screen but couldn't make out detail long enough to be sure it wasn't part of his tie. But click here and you'll see it sure looks like a cable. One of the New York weather guys used to wear his control (for communication from the producers) down his tie and would get caught on the cable; but this one appears to end in the president's jacket pocket (inside).