The advent of the civil rights movement during the 50s and 60s made it very plain crystal clear to me that we had an obligation to do what we could to make real the Constitution of the United States of America.

That issue has been resolved for years now, and it's been resolved for at least two years in Donald Trump's mind. And to bring that up as justification for John Lewis questioning the legitimacy of a democratic activity that is - has been around since the beginning of our country is wrong.

The vast majority of the American people agree with me and many others. You don't simply repeal the Affordable Care Act without a replacement. Republicans have had six years to come up with a replacement. They got nothing.

First time I got arrested, I knew somehow and some way, we would succeed. To go on the Freedom Ride to be beaten and left bloody and unconscious, to be beaten on that bridge in Selma, have a concussion - I thought that I was going to die on that bridge. But somehow and some way, I lived to tell about what happened, and I've seen some of the fruits of the labor of so many people, and people must understand that.

Donald Trump has made it clear that certainly over the last few years that President [Barack] Obama was born in Hawaii.

I would like to think that we have made much more progress, that we've come much further, to have someone like a Donald Trump to emerge as the nominee of a major political party.

I think [James Comey] should take a hard look at what he has done. And I think it would not be a bad thing for the American people if he did step down.