Stephen Miller has said Donald Trump has plenary authority but what does that actually mean?

A Trump administration official has allegedly claimed the US president has "plenary authority" while on a live interview with CNN.

White House deputy chief of staff Stephen Miller made the comment in relation to deploying National Guard troops in Portland, Oregon.

But the viral moment came immediately after, when he appeared to cut himself off mid-sentence, leaving his statement incomplete.

Here's how things played out.

What happened?

In an interview with CNN, Mr Miller was asked whether he was planning to abide by a court order that would prevent the Trump administration from deploying National Guard troops to Portland .

"Well, the administration filed an appeal this morning with the Ninth Circuit," he said.

"I would note the administration won an identical case in the Ninth Circ