I don't think I underestimated [Vladimir Putin], but I think that I underestimated the degree to which, in this new information age, it is possible for misinformation for cyber hacking and so forth to have an impact on our open societies, our open systems, to insinuate themselves into our democratic practices in ways that I think are accelerating.

I don't have a philosophical objection, necessarily, to a travel ban if that is the thing that is going to keep the American people safe.

The United States was proud to stand with the people of Germany as this nation and this continent reunited and rebuilt and reached for a better future.

Part of people's concern is just the sense that around the world the old order isn't holding and we're not quite yet to where we need to be in terms of a new order that's based on a different set of principles, that's based on a sense of common humanity, that's based on economies that work for all people.

[Fall of the Berlin Wall] is a reminder that the commitment of the United States, to Europe is enduring and it's rooted in the values we share; our commitment to democracy, our commitment to rule of law, our commitment to the dignity of all people in our own countries and around the world.

I face the world as it is and cannot stand idle in the face of threats to the American people. For make no mistake, evil does exist in the world.

We continue to stand united with Germany and our NATO allies in our ongoing efforts to build peace and stability in Afghanistan.