The United States and China have both beefed up their naval presence in Southeast Asia, leading to fears of a military confrontation. This is just one example of China flexing its military muscle in recent months, and it coincides with a slowdown in the nation's economy.

I think, as a historian, what strikes one the most about this [Donald'd Trump] program is just simply its nationalism, with his commitment to the redevelopment of American manufacturing and industrial jobs, providing jobs for the constituency that was so important in electing him.

Young people realize that something is amiss. There's a generation that fell in love with their phones, and it's very hard for them to see that there's a problem. But young people are desperate for the attention of their parents, who are really not paying attention to them.

You know what the Russians are saying is that they have an historic relationship with - with Crimea, and they're saying the Crimean legislature has voted now to have a referendum, and they're saying what the government in Kiev did was illegal.

That was an exception within the [Barack] Obama administration's economic policy, a crisis that he inherited from the previous administration, and felt it was essential to carry through on.

What we do have is a gigantic matching tax-cutting program as a way of stimulating the economy.

We haven't learned to be the majority party. We haven't learned how to lead. We're still stuck in the opposition.