I commended Angela [Merkel] for her leadership along with President Hollande in working to resolve the conflict in Ukraine. We continued to stand with the people of Ukraine and for the basic principle that nations have a right to determine their own destiny and we discussed the importance of maintaining sanctions until Russia fully complies with the Minsk Agreement.

There's a utility in the democracy refreshing itself on an ongoing basis.

My administration will be the most transparent in history

We are a nation of laws.

My biggest frustration so far is the fact that this society has not been willing to take some basic steps to keep guns out of the hands of people who can do just unbelievable damage. We're the only developed country on Earth where this happens. ... And it happens once a week. And it's a one-day story. ... The country has to do some soul-searching on this.

It is moments like these that force us to try harder, and dig deeper, and to discover gifts we never knew we had - to find the greatness that lies within each of us.

Over more than a decade, Iran had moved ahead with its nuclear program. And before the deal, it had installed nearly 20,000 centrifuges that could enrich uranium for a nuclear bomb.