RE: Your article III, section 2 quote specifies differences between when a crime occurs within a state, which DC is not, or somewhere else. But the 6th for similar subject matter says “jury of the state and district wherein the crime was committed. Can I presume the 6th thus modifies the earlier Article III ยง2 language? In any case, to the extent it’s constitutionally possible Congress should tweak the rules regarding legal actions within DC so that it neither remains a political shield against Democratic corruption nor an opportunity for corrupt lawfare against Republicans.
The 6th modifies Article III, especially by requiring criminal trials to be conducted in the district where the alleged crime(s) were committed.