I wouldn't take up arms. I think that might be a little extreme.

When I took on the drug companies and the insurance companies for universal health care coverage, they went after me with a vengeance.

From the theft of confidential cables to 21st century protest movements, to development breakthroughs that have the potential to change millions of lives, we are all in uncharted territory.

I don't think any of us have the answers to everything. There's no human being on earth who fits that category. So why wouldn't you ask for help? Why wouldn't you run ideas by people that you respect? Too many young people cast around trying to figure out what the answer is themselves, because they're afraid to come back and say, "I'm not sure I understood you," or "Could you give me a little more information about what you need?" Just do that. It saves you time, it saves your boss's or mentor's time. And it's a great lesson to learn.

I think the stress on income inequality is something that every American should take seriously.

We have a close, unshakable bond between the United States and Israel, and between the American and Israeli people. We share common values and a commitment to a democratic future for the world, and we are both committed to a two-state solution. But that doesn't mean that we're going to agree.

There's no doubt that I respect the Second Amendment, that I also believe there's an individual right to bear arms. That is not in conflict with sensible, commonsense regulation.