The Russians need to understand that you cannot have peace [in Syria] unless you resolve the question of Sunni buy-in.

I promise just to serve two terms. Republicans do it differently. They just have the son repeat the father's whole first term.

Think about this: terrorism, epidemics, poverty, the proliferation of weapons of mass destruction-all challenges that know no borders-the reality is that climate change ranks right up there with every single one of them.

So the threat of Saddam Hussein with weapons of mass destruction is real.

You can lead a horse to water, but you can't make it drink.

Our cause in the war on terror isn't helped when we have army officers like Lieutenant General William Boykin speaking in evangelical churches and claiming this as some sort of battle for the Christian religion. That's wrong. That's un-American.

I think that for many of us, the years of the Civil Rights movements - Martin Luther King, Bobby Kennedy running for president in 1968 to end the war and so forth - these were defining moment in terms of trying to hold government accountable and have a level of responsibility and truth-telling.