He called the ruling a “huge win” over a “horrible gerrymander.” But Trump himself has ordered many GOP states to gerrymander maximally. So here Trump openly declared that Republicans reserve the right to rig elections while Democrats do not. His actual position is that Republicans should play by their own corrupt rules, a declaration of intent to functionally steal the midterms.
Computers have been used for gerrymandering since the late 1970s. I know people who worked on it.