"Most of FECA’s prohibitions, including those related to contributions/donations from foreign nationals, create criminal consequences only when a person “knowingly and willfully” commits a violation of the statute.*** See 52 U.S.C. 30109(d)(1)(A)." In other words, mens rea. Good luck proving that!
This is why the majority of reputable media outlets are reporting, Trump Jr. 'may' have broken the law. They are trying to get clicks and many people are happy to oblige.
http://yalejreg.com/nc/if-trump-jr-didnt-know-campaign-finance-law-he-didnt-break-it/
If Trump Jr. Didn’t Know Campaign Finance Law, He Won’t Be Prosecuted | Notice & Comment
A controversy has recently erupted over a June 2016 meeting between some members of the Trump campaign team, including the President’s son, Donald Trump Jr., and at least one Russian citizen. The Trump campaign’s version of events has shifted several times, and new details continue to emerge. However, it appears that Trump Jr.’s desire to obtain compromising information about Hillary Clinton from the Russian citizen motivated his acceptance of...
https://www.law.cornell.edu/uscode/text/52/30109
And then there is: 52 U.S.C. 30109(d)(2) In any criminal action brought for a violation of any provision of this Act ..., any defendant may evidence their lack of knowledge or intent to commit the alleged violation by introducing as evidence a conciliation agreement entered into between the defendant and the Commission under subsection (a)(4)(A) which specifically deals with the act or failure to act constituting such violation and which is still in effect.
So basically a defendant can claim ignorance of law when admitting they did what they did that violated the Act... No "knowing and willful violation" required...
Then the Ninth Circuit says: “‘willfully’ in this [FECA] statute means that the ‘[g]overnment must prove that [the defendant] intended to violate the law (whatever the law was); but it need not prove awareness of the specific law’s commands’”
I can't find the citation but I believe the courts held that labor was a "thing of value", so its not just money.
But like all legal dramas, one side tries to prove the defendant guilty while the other side tries to prove him innocent. chung-chung <Law & Order sound effect> Some work to build the case and some work to dismiss the case.
However, here is a key from your cited article: "although the DOJ Manual does not create binding law, it will likely control any prosecution decisions by the DOJ, including by Special Counsel Robert Mueller."
But "He Won’t Be Prosecuted" is not the same as it wasn't a violation of law. So then, what about the conspiracy charge?
52 U.S. Code § 30109 - Enforcement
Before taking any action under subsection (a) against any person who has failed to file a report required under section 30104(a)(2)(A)(iii) of this title for the calendar quarter immediately preceding the election involved, or in accordance with section 30104(a)(2)(A)(i) of this title, the Commission shall notify the person of such failure to file the required reports. If a satisfactory response is not received within 4 business days after the...