Nothing more than a Breitbart-esque partisan hack-job pushed by a neophyte looking to please God Emperor Trump.
Trump himself has openly admitted that he is only releasing the memo based on the fact that it will cast doubt on the investigation into him by Mueller.
This is 4 pages of cherry picked and non-contextual babble from a FISA warrant that's THOUSANDS AND THOUSANDS of pages long.
Any intelligence analyst with half a brain is saying that there is no clearer sign that it is nothing but a smear campaign meant to muddy the waters.
This has nothing to do with being in the interest of your civil liberties, and anyone buying that is proving they are the mark that the American political system thinks they are.