What is plenary authority? Does the president have plenary power? Here's what to know about the Insurrection Act and what was said.

White House aide Stephen Miller said the president has "plenary authority" under Title 10 of the U.S. Code during a CNN ...

Here are the answers to some pressing questions raised by the remarks, Trump's comments on the Insurrection Act and more.

Health economists explain why the NHS offering more expensive medicines will not be good for most patients - in fact it will ...