Yep. People forget, and it largely wasn't publicized, or it got memory holed, that Trump sent troops to the southern border in his first term. What did they do? They sat around and watched invaders cross our border, and report the number of invaders to their superiors at the end of their shift. They were barred from intervening, stopping, or shooting the invaders. There's a good post about it here:
https://gab.com/PadraigMartin/posts/113883462665390486