At my company, service techs have to either have a work permit, or answer 'going to a meeting' (temp solution until they get the permit) when they do software setting/testing/demos at US locations.

Exactly how did this 'worker' enter the USA?

What did she tell US customs and immigration/home land security upon entry? I doubt if she told the truth she would have been allowed entry.

Is this not only foreign interference but being an indocumented worker? If so she broke the law, and is setting the stage for others to do so.

Volunteering is not the 'out', it is the working that is the issue here.

And I would say the same if she were going to work on a Republican campaign