What Donald Trump is proposing with these massive tax cuts will result in a $20 trillion additional national debt. That will have dire consequences for Social Security and Medicare.

I'm a proud product of the American middle class.

It was during George W. Bush's presidency that Iran mastered the nuclear fuel cycle, that they built covert facilities, that they stocked them with centrifuges, that they were spinning merrily away toward getting a nuclear-weapons program.

Nothing is more important to our shared future than the well-being of children. For children are at our core - not only as vulnerable beings in need of love and care but as a moral touchstone amidst the complexity and contentiousness of modern life.

Climate change is directly related to the growth of terrorism. And if we do not get our act together and listen to what the scientists say, you're going to see countries all over the world struggling over limited amounts of water, limited amounts of land to grow their crops ask you're going to see all kinds of international conflict.

Donald Trump abuses his power, games the system, puts his own interests ahead of the country's.

We would very much like to see Iran take a position as a responsible leader that doesn't intimidate or threaten or scare its neighbors and others. But the choice is really up to Iran and we're going to keep working to try to come out with the right decision.