I want to make sure that we, as a nation, stay unified because that's how we're going to achieve our missions.

On Syria, it's clear that the indiscriminate attacks on civilians by the [Bashar] Assad regime and Russia will only worsen the humanitarian catastrophe and that a negotiated end to the conflict is the only way to achieve lasting peace in Syria.

We know that the nation that goes all-in on innovation today will own the global economy tomorrow. This is an edge America cannot surrender.

Jimmy Carter will go down in American history as 'the president who lost Iran,'

One of the things we're going to have to discuss and debate is how are we striking this balance between the need to keep the American people safe and our concerns about privacy. Because there are some trade-offs involved. I welcome this debate, and I think it's healthy for our democracy.

The most important thing we can do is to make sure that we've got very high standards, we expect a lot out of all of our young people, and we make sure that we have the best teachers possible in every classroom.

Because as tough as things have been, I am convinced you are tougher. I've seen your passion and I've seen your service... I've seen a generation eager, impatient even, to step into the rushing waters of history and change its course.