Today, about 40 percent of America's carbon pollution comes from our power plants. There are no federal limits to the amount those plants can pump into the air. None. We limit the amount of toxic chemicals like mercury, and sulfur, and arsenic in our air and water, but power plants can dump as much carbon pollution into our atmosphere as they want. It's not smart, it's not right, it's not safe, and I determined it needs to stop.

We will not engage in an endless process of negotiations.

Israel must be able to defend itself - by itself - against any threat.

The United States is committed to a regional order rooted in international rules and norms, including freedom of navigation, and the peaceful resolution of disputes. That's the only way to ensure our common security.

Senator McCain likes to talk about judgment, but really, what does it say about your judgment when you think George Bush has been right more than ninety percent of the time? I don't know about you, but I'm not ready to take a ten percent chance on change.

Iran will for sure have pledged to the international community that it will not develop a nuclear weapon, and now will be subject to an additional protocol, a more vigorous inspection and monitoring regime that lasts in perpetuity.

Together, we could open up government and invite citizens in, while connecting all of America to 21st century broadband. We could use technology to help achieve universal health care, to reach for a clean energy future, and to ensure that young Americans can compete - and win - in the global economy.