When a U.S. president welcomes a world leader to the White House, what determines whether the visit will be a state visit or an official visit? Here's what you need to know.
President Trump welcomed French President Emmanuel Macron on April 23 as his first guest for an official state visit.
More than 200 years ago, George Washington voluntarily gave up the office of the presidency of the United States. Find out why the speech he gave announcing his departure is still so important that it is read aloud every year in the Senate.
Ever wondered what the national security adviser actually does? Learn about the job and why one former national security adviser describes it as "the best foreign-policy job in government."
Before nominees for Cabinet positions can start work, they have one important hurdle to clear: the Senate confirmation process.
No country welcomes more foreign companies than the United States. They create nearly 7 million jobs. But the U.S. also seeks to ensure foreign countries don't get hold of technology that threatens national security.
Even if you like a president enough to support giving him or her more time in office, there are good reasons not to break rules on term limits.
Every February, Americans honor their presidents. Take our quiz to see how much you know about U.S. presidents. Share your results!
Learn about some of the pictures on display in the American Presidents exhibition at the Smithsonian's National Portrait Gallery in Washington.