Iran . . . has failed to take the opportunity to demonstrate that its nuclear program is peaceful . . . time is not unlimited.

Both of our nations [America and Germany] were proud to join the Paris Climate Agreement which the world should work to implement quickly. Continued global leadership on climate in addition to increasing private investment and clean energy is gonna be critical to meeting this growing threat.

I believe, in the words of Dr. Martin Luther King Jr., that there is such a thing as being too late, and when it comes to climate change, that hour is almost upon us.

If we have Osama bin Laden in our sights and the Pakistani government is unable or unwilling to take them out, then, I think that we have to act and we will take them out. We will kill bin Laden. We will crush al Qaeda. That has to be our biggest national security priority.

You might not be ready for diplomacy with Beijing if you can't visit the Olympics without insulting our closest ally.

Our focus on the investigation is really wide-ranging. And we can't limit it to just one point in time.

I've just concluded that for me personally it is important for me to go ahead and affirm that I think same-sex couples should be able to get married.