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'm skeptical that [the Republicans] can do [something better with healthcare] mainly because for seven years now, including when we first tried to pass health care, I said to 'em, "Okay, if [Obamacare] doesn't work tell me what does."

We do need to make sure that we have an orderly, lawful immigration process.

As president, I'm committed to making Washington work better and rebuilding the trust of the people who sent us here.

I would say that I have been consistent in my broad view of how American power should be deployed, and the view that we underestimate our power when we restrict it to just our military power. We shortchange our influence and our ability to shape events when that's the only tool we think we have in the toolbox.

My administration will be the most transparent in history

[White House] feels even more like home now because you have all these memories that were formed watching your kids grow up.