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

Readers react to President Trump’s answer when asked if he needed to uphold the Constitution. Also: Immigration questions; ...

Trump, months after taking the oath of office, questioned whether he had a duty to uphold the constitutional right to due ...

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

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

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

President Trump said during a wide-ranging interview Sunday that he does not know if he has to uphold the Constitution. When ...

Former Vice President Mike Pence invoked the Constitution, noting it binds Americans “across time and generations,” while ...

Americans are learning what it’s like to live with a president who sees no constraints on his actions and who apparently ...

Mike Pence said the Constitution is what "binds us all together" after receiving the John F. Kennedy Profile in Courage Award ...

The president also questioned whether noncitizens are entitled to due process as his deportation efforts stoke conflict with ...

Former U.S. Vice President Mike Pence has repeatedly defended the Constitution and took apparent swipes at President Donald ...