It's a figure of speech.
I always watch what my enemies are doing.
Although I will say, I don't watch the program much. Usually only when I know it will be interesting or there is someone on that I know that will eviserate Alan.
Mark Levin used to destroy Colmes with regularly. ...and in an entertaining way. Great TV. But I haven't seen Levin on as a guest since he got his own radio show. Been a long while.