Citadel CEO Ken Griffin will lend his copies of the Constitution and Bill of Rights to the National Constitution Center.

As the Trump administration tests the limits of presidential power, here's a look at what the U.S. Constitution says.

Republicans have been silent after Donald Trump responded to a question about whether he needs to uphold the Constitution by ...

President Trump and his allies have portrayed their efforts to bypass due process as necessary for national security.

"Trump on Jan. 20: 'I will faithfully execute the Office of President of the United States, and will to the best of my ...

Donald Trump has repeatedly floated the idea of remaining in office once his term ends. Examples from other countries show ...

Donald Trump doesn’t know if he has to uphold the Constitution. The president of the United States doesn’t know if he has to ...

Asked on 'Meet the Press' whether he needs to uphold the U.S. Constitution, President Trump flatly said, 'I don't know.' And ...

In a time when leadership should reaffirm our commitment to the Constitution, uncertainty in its defense threatens the very ...

The United States of America is at a precarious moment. Our constitutional republic is hanging by a thread when the president himself seems uncertain about his obligation to uphold the Constitution — ...