A nuclear Iran is a threat to America's national security, and it is a threat to Israel's national security. We cannot afford to have a nuclear arms race in the most volatile region of the world.

What is portrayed as high-minded positions on issues sometimes is just designed to carve out some of their commercial interests.

another tradition to politics, a tradition (of politics) that stretched from the days of the country’s founding to the glory of the civil rights movement, a tradition based on the simple idea that we have a stake in one another, and that what binds us together is greater than what drives us apart, and that if enough people believe in the truth of that proposition and act on it, then we might not solve every problem, but we can get something meaningful done.

Congress should fund research on the effects that violent video games have on young minds... We don't benefit from ignorance. We don't benefit from not knowing the science.

America is much less violent than it was 20, 30 years ago, and immigration is much less a problem than it was not just 20, 30 years ago, but when I came in as president.

We are convinced, as some of you may be convinced, that changing the way we produce and use energy is essential to America's economic future, that it will create millions of new jobs, power new industries, keep us competitive, and spark new innovation.

America, we are better than these last eight years. We are a better country than this.