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

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

House Democrats file a Supreme Court amicus brief opposing the current president’s executive order to end birthright citizenship, arguing the action violates the Constitution and over a century of ...

As President Trump tests what "due process" means under the law, the courts say his government must take steps to ensure ...

Donald Trump once again swore to “preserve, protect and defend the Constitution of the United States” to the ‘best of his ability’ before becoming president for the second time – but since then, the ...

Since returning to the White House, President Donald Trump has made several moves to crack down on immigration, and one of ...

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

The U.S. Supreme Court will hear arguments May 15 over Trump's bid to end birthright citizenship. Here's what that is, and what Trump wants to do.