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

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

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 ...

The birthright citizenship legal challenge at the Supreme Court is not a minor adjustment to immigration policy, but a ...

The U.S. Constitution is not a suggestion. It is the most sacred document in our country's history. Under the government it ...

Before the Trump presidency, there was broad consensus that the 14th Amendment established birthright citizenship for ...

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

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 ...

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

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

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