This publication that you referenced is interesting. Do you consider it to be a reliable communicator of fact and truth?
I read the article that you referenced and an admittedly random number of other articles in it.
I have the feeling that these articles including the one you referenced depend on some prior understanding between the author and the reader that I don't have. I can't tell for example, which you hope will be thwarted, the Congressional push to deny Israel US military aid or the ADL's support for Israel's annexation of more of the West Bank?
Another article that caught my interest was
America's Political Prisoners. Most of the political prisoners that they list attended the infamous Unite the Right rally in Charlottesville, Virginia in August of 2017. The first three were involved in the
Assault of DeAndre Harris by six men including the three listed as political prisoners by the National Justice website. The three were convicted of the crimes that they were charged with from video evidence and eye witness accounts. The assault was filmed by two different self-proclaimed journalists.
The three defendants claimed self-defense after Harris attacked a man, Harold Ray Crews, the head of North Carolina's League of the South. According to the Wikipedia article referenced above, "Interpretations of video footage differ on whether Crews used a flagpole to attack "another counter-protester" or Harris himself."
Harris was also arrested for felony assault for hitting Crews with a flashlight The charges against Harris were dropped to misdemeanor assault and battery which he was acquitted of after a bench trial. Two of the men who beat up Harris were never identified. The fourth man was also convicted but was not mentioned in the National Justice article as being a political prisoner.
The next two political prisoners were also charged from incidents that occurred at the Unite the Right rally. Both incidents involved clashes between the rally attendees and counter-protesters, but in one case the so-called political prisoners plead guilty and the other one pleads no contest to the charge. In neither case did the National Justice article mention these relevant facts.
The bottom line, I am not sure that you are being well served by the National Justice website. Looking at this admittedly small sample of the current articles in it the website is a long way from being a credible source for facts, rather they seem to be appealing to the straight, white male grievance that has incited so much of neo-fascist reactionary political movement in the US by lying and omitting relevant, well established facts that contradict their political agenda.
All of that being said I did find some support for the story about the leaked ADL memo, but not in the mainstream media. In the article quoted as the source of the memo, another website that I know nothing about,
Jewish Currents, entitled Leaked Memo Details ADL’s Annexation Response. This article, for what it is worth, characterizes the memo as planning for their response to the almost certainty* that Israel will annex 30% of the occupied West Bank rather than a conspiracy to enable the annexation. I find this much more believable than the conspiracy theory in the National Justice article because the Jewish Current article contains extensive quotes from the memo to support their interpretation of the memo, something that the National Justice article doesn't do in support of their conspiracy theory.
The point is a fine distinction I admit, but this is how political propaganda works, a grain of fact ultimately bent into a falsehood.
*
now that the US has abandoned its long standing opposition to annexation thanks to Trump and the fundamentalist Christians who want to trigger the rapture, dooming we atheists to an eternity burning in hell. 
