Challenging American leadership is not at stake.

Strictly speaking, Rosneft is not a company. Let us not forget that BP has a stake in Rosneft and BP is a British company.

— Vladimir Putin

We are actively preparing a partial privatization of Rosneft itself. It is the best proof that our major plans have remained unchanged. Another example…

— Vladimir Putin

There is no need for the Russian state to hold such large stakes and we do intend to put our plans into practice. It…

— Vladimir Putin

When the world lacks muscular and wise American leadership, it devolves into total chaos, which, in turn, produces unspeakable evils.

— Monica Crowley

At a time of change and challenge at home and abroad, these investments will enhance the security of Americans, assure the future American leadership,…

— Hillary Clinton

Without American leadership at the U.N., countries just continue to talk and socialize and spend taxpayer dollars.

— Richard Grenell

Putin's Russia is our adversary and moral opposite. It is committed to the destruction of the post-war, rule-based world order built on American leadership…

— John McCain

Our survival, the future of our civilization, possibly the existence of mankind, depends on American leadership

— Charles Lindbergh

The lesson must be learned that American leadership matters, and weak leaders leave our friends and allies more vulnerable against violence.

— John E. James

I want American Dream growth - lots of new businesses, well-paying jobs, and American leadership in new industries, like clean energy and biotechnology.

— William J. Clinton

When Iran continues to get away with bad behavior, what do our allies who are Iran's enemies think about us? It is why we…

— Carly Fiorina

Part of American leadership is making sure that we're doing nation building here at home. That will help us maintain the kind of American…

— Barack Obama

The small and bullying leader of Russia is now dictating terms to the United States, to the point where all the United States of…

— Mike Pence

Everywhere that I go in the world, people desperately look to American leadership in all of their world's most difficult problems. You can look…

— Condoleezza Rice

America's exceptionalism, American leadership, the American model, the American values are not [first with Donald Trump] - they're something that end at the border.

— Mark Shields