Mistakenly pasting in martial law is surely grounds for impeachment in its own right. Ignorance of what law you're passing is not an excuse.
> Ignorance of what law you're passing is not an excuse
Pretty much every elected legislature ever uses this excuse and gets away with it again and again and again at each election cycle. They will fight tooth and nail to prevent a precedent to the tune of "it's your job to know" even if the precedent is against the executive because even that is too close for comfort.
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Sufficiently advanced incompetence surely is indistinguishable from malice.
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