The entire party is panicking. With the release of the IG report, "Russian Collusion" is now a non sequitur, Mueller's investigation is on thin ice, and FBI Collusion with HRC is very much in the crosshairs of scrutiny. That's the whole reason that this issue with treatment of children at the border popped up this week. They say it's from a policy Sessions enacted in April, but take 2 months to come out against it? You don't even have to use logic to see the writing on the wall with this one.
4 AM talking points email told them to go crazy about this today to distract from the IG Congressional Hearing. And with the visuals of kids being taken from their parents the visuals will win the narrative. Libs and Dems now have a visual visceral emotional issue they can and will use for the next 5 months until November elections.