Words matter. Words matter when you run for president. And they really matter when you are president. - Hillary Clinton

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.

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.

It is long past time for the Saudis, the Qataris and the Kuwaitis and others to stop their citizens from funding extremist organizations. And they should stop supporting radical schools and mosques around the world that have set too many young people on a path towards extremism.