The endless Mainstream Media lies are at the behest of the Dem Party's leadership. The larger question is why did one of the Dem Party's bought and paid for 'journalists' finally spill the beans about what's really happening.
I'm guessing that the word has come down to 'discover' the reality at the border, pretend that the President never knew that it was happening, and then finally close the border leading up to the election in order to prove to non-thinkers that he cares about border violations. But that's just a guess.
