Earlier quoted context omitted.
Due process just means following pre-written law. ex. There's no judge involved when a cop shows up to a fight and arrests both people. It's the same law [1] that everybody is talking about w.r.t. Trump's Tariffs except that global trade isn't emergent while Funnull is a new actor. [1]: https://www.govinfo.gov/content/pkg/DCPD-201600880/pdf/DCPD-...
They arrest people to put them in front of a judge. This is nothing like that.
However, he's also welcome to email an appeal [1].
Note: This is a civil penalty. Much like a traffic ticket and does not require a judge.
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You won't necessarily show up in front of a judge if you get arrested. You may get released with no charges. You might also not get court time until a year+ from now inwhich case you'll probably plead guilty to time served regardless of the crime since it lets you out now.
Due process does not mean "judge approved". It just means consistent with written law.
[1]: https://ofac.treasury.gov/specially-designated-nationals-lis...