Good evening. I'm Laura Coach. You're looking at live pictures from Minneapolis during another

tense night between federal officers and protesters. They're moving as we speak right now,

appearing to move the crowd out of the street. We'll check in outside the Whipple federal building momentarily.

Throughout the day, we have seen agents deploying pepper spray.

We have seen some people get detained.

Protesters have been shouting and occasionally throwing objects in their direction.

It's all after last night's incident where a federal agent shot a suspect after DHS alleged that an agent was assaulted.

One week before, Renee Good was shot and killed by ICE.

And now President Trump is once again dangling the threat of invoking the Insurrection Act.

He posted this very warning, warning if Minnesota politicians don't stop what he calls professional agitators and insurrectionists from attacking ICE, he will invoke that.

But what is the Insurrection Act exactly?

You'll hear a lot about it, right?

Well, it's the big exception to the general rule that keeps U.S. troops from being

used for domestic law enforcement. Now, governor can always ask for this kind of help if there's

an emergency, but in certain situations, it lets the president send in the military even without a governor

asking for any help. It's designed for out-of-control

situations when it's not possible to carry out federal law. Or if federal law is being obstructed,

and we see, of course, the agents appearing to band together to move in unison to hold a line that we will explore in just a moment.

Ultimately, it's one of the president's few unchecked powers, though, to invoke the Insurrection Act.

And make no mistake, the commander-in-chief's power to deploy is already extraordinary.

So it's not really whether he has the power to invoke the Insurrection Act. No, the question is, does he have sufficient justification to invoke it? Well, let's look at the facts. We have seen multiple nights of unrest in Minneapolis. And while there have been instances of peaceful protests, I'll be adverbal, there have also been

instances when those protests have been anything but peaceful and have devolved into what the

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