Donald Trump and the Art of War
Sun Tzu says you should not overestimate your opponents. He mainly says you should not underestimate your opponents, but he also says that overestimating them is bad too.
With the child internment policy, Trump made the error of overestimating Democrats. Trump thought for sure if put immigrant kids in tents in the desert, then Democrats would feel so bad about it that they would quickly relent and give Trump funding for the Wall. He overestimated the character of Democrats. Democrats are just fine having immigrant kids languish in the desert if they think it is good for them politically.
Shame! Shame on the Democrats! All they have to do is fund the Wall and change the law so that only people from Sweden can come to the USA. Then Trump will bus the kids back to Mexico.
There are decades where nothing happens; and there are weeks where decades happen.