The Russians and the Chinese have been absolutely clear they don't want to see Iran with a nuclear weapon.

To Barack and Michelle Obama - America owes you an enormous debt of gratitude.

There is still work to be done, but that remains a crucial lesson, you cannot bring peace and security to people just by signing an agreement. In fact, most peace agreements don't last.

Donald Trump is reinforcing harmful stereotypes and offering a dog whistle to his most hateful supporters. It's a disturbing preview of what kind of president he'd be.

I would love having the job of president because I know how to do it. I know what the country needs.

I have said publicly no option should be off the table, but I would certainly take nuclear weapons off the table.

We used to say in the White House that if a place is too dangerous, too small or too poor, send the First Lady.