I [give] maybe the long-winded speeches that not everybody reads, but I can also do a slow jam on Jimmy Fallon better than most.

I think that [having not a lot of time sweating the details] can be both a strength and a weakness. I think it depends on how [Donald Trump] approaches it. If it gives him fresh eyes, then that can be valuable. But it also requires you knowing what you don't know and putting in place people who do have the kinds of experience and background and knowledge that can inform good decision making.

If, technologically, it is possible to make an impenetrable device or system where the encryption is so strong that there's no key - there's no door at all - then how do we apprehend the child pornographer? How do we solve or disrupt a terrorist plot?

I have Muslim members of my family. I have lived in Muslim countries.

The easiest way to save money is to waste less energy.

We can choose a future where we export more products and outsource fewer jobs. After a decade that was defined by what we bought and borrowed, we're getting back to basics, and doing what America has always done best: We're making things again.

Progress does not compel us to settle centuries-long debates about the role of government for all time, but it does require us to act in our time.