Well, as soon as he [Trump] travels to 112 countries and negotiates a peace deal, a cease fire, the release of dissidents, an opening of new opportunities in nations around the world, or even spends eleven hours testifying in front of a congressional committee, he can talk to me about stamina.

His [Trump's] cavalier attitude about nuclear weapons is so deeply troubling. That is the number-one threat we face in the world. And it becomes particularly threatening if terrorists ever get their hands on any nuclear material. So a man who can be provoked by a tweet should not have his fingers anywhere near the nuclear codes, as far as I think anyone with any sense about this should be concerned.

When I became secretary of state, Iran was weeks away from having enough nuclear material to form a bomb. They had mastered the nuclear fuel cycle under the Bush administration. They had built covert facilities. They had stocked them with centrifuges that were whirling away. And we had sanctioned them. I voted for every sanction against Iran when I was in the Senate, but it wasn't enough. So I spent a year-and-a-half putting together a coalition that included Russia and China to impose the toughest sanctions on Iran.

PREMIUM FEATURE
Advanced Search Filters

Filter search results by source, date, and more with our premium search tools.

Donald has consistently insulted Muslims abroad, Muslims at home, when we need to be cooperating with Muslim nations and with the American Muslim community. They're on the front lines. They can provide information to us that we might not get anywhere else. They need to have close working cooperation with law enforcement in these communities, not be alienated and pushed away as some of Donald's rhetoric, unfortunately, has led to.

I think we need to do much more with our tech companies to prevent ISIS and their operatives from being able to use the Internet to radicalize, even direct people in our country and Europe and elsewhere. But we also have to intensify our air strikes against ISIS and eventually support our Arab and Kurdish partners to be able to actually take out ISIS in Raqqa, end their claim of being a Caliphate.

I think cyber security, cyber warfare will be one of the biggest challenges facing the next president, because clearly we're facing at this point two different kinds of adversaries. There are the independent hacking groups that do it mostly for commercial reasons to try to steal information that they can use to make money. But increasingly, we are seeing cyber attacks coming from states, organs of states. The most recent and troubling of these has been Russia. There's no doubt now that Russia has used cyber attacks against all kinds of organizations in our country, and I am deeply concerned about this.

He has really started his political activity based on this racist lie that our first black president was not an American citizen. There was absolutely no evidence for it, but he persisted, he persisted year after year, because some of his supporters, people that he was trying to bring into his fold, apparently believed it or wanted to believe it. ... The birther lie was a very hurtful one. You know, Barack Obama is a man of great dignity. And I could tell how much it bothered him and annoyed him that this was being touted and used against him.