Citadel CEO Ken Griffin believes American prosperity is a testament to the power of the Constitution. And as the country gets ...

The museum received record $15 million gift to create exhibits on the United States' founding principles and the separation ...

The $15 million donation from billionaire hedge fund manager Kenneth C. Griffin also comes with rare loaned copies of ...

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