The Cuban people must know that they have a friend and partner in the United States of America.

We've taken bold action at home by making historic investments in renewable energy, by putting our people to work increasing efficiency in our homes and buildings, and by pursuing comprehensive legislation to transform to a clean energy economy.

Usually, I'm pretty good about sorting through the options and then making decisions that I'm confident are the best decisions in that moment, given the information we have. But there are times where I think I wish I could have imagined a different level of insight.

It's time to "stop being ambivalent." ... They (groups like the Islamic State) have no ideology beyond violence and chaos and the slaughter of innocent people.

There are enormous resources in Greece.

Is this money well spent? This is taxpayer money, it is going to be adding to the deficit short term and if we can't justify it, then we're not going to spend tens or hundreds of billions of dollars, just to make somebody happy, if it's not good for the economy.

One of the things I've learned about being president is that we'll work on issues for long periods of time, sometimes in obscurity.