I remember the day Richard Nixon won in 1968. That was a time that seemed certain to bring about long awaited seismic change in America. But events of tragic proportion took us on a turn. Bobby Kennedy and Martin Luther King, Jr. were suddenly dead.

I fell in love with my wife twenty years ago. I am only now, it seems, getting it through my very thick skull how lucky I am.

I have to admit I've rarely been happier in my life. I have been absolutely thrilled to be back in New York and living a block from where I grew up. Just to be back in New York and, quite honestly, away from Hollywood has been an absolute thrill for me. I feel like I'm a real actor again.

I had been used to improvising and even in the audition I was feeling free to rearrange Aaron Sorkin words a little bit, as lovely as they were. I didn't find out until after I got the part how furious Aaron was at me for doing that. They said, "He was livid. He did everything in his power not to jump down your throat!" But I came to realise that Aaron was writing in metre and the rhythm of the language is very important.

I am one of the lucky ones; believe me, I haven't forgotten that.

Playing a TV character for seven years is almost like when you do a play. You live, breathe, and everything else with that character 24-7 for six months or four months or whatever, and that gets very deep in your blood. When you do a TV character for seven years, that's a long time. It becomes a seminal era in your life.

I imagine an America that can actually change. That we become a nation that prospers again but without pillaging the resources of nations that make their people hate us. That we become a nation that, as the constitution says in its preamble, its very first paragraph, 'promotes the general welfare' of its people.