I am an old, old friend of Aaron Sorkin's, who is the...

I am an old, old friend of Aaron Sorkin's, who is the executive producer and writer. He had been talking about doing a political show for a long time and I had been interested in it for a long time. The moment I became available, he called me last year and asked me if I wanted to do it and then I just had to audition for the powers that be, and I got it.