And indeed districts can be quite fairly distributed, rather than gerrymandered, in such a way that they cover different parts of a zip/post code area.

Although cyberwarfare and technological vulnerabilities that affect ballot collection and counting seem to be more potent than gerrymandering at this point, with modern elections.

Gerrymandering probably still matters in swing states like Ohio and Florida, but only if modern tampering methods have been ruled out everywhere else.

> Gerrymandering probably still matters

It matters everywhere in the US, down to the school district level (or whatever municipal granularity you like). This is orthogonal to tampering.