> Rigging (digital or not) would be hard to hide, because it could only be a minor adjustment to remain plausible. As candidates & parties become more competit

> Rigging (digital or not) would be hard to hide, because it could only be a minor adjustment to remain plausible. As candidates & parties become more competitive, the difference in their voting shares tends to narrow. Eventually you end up with large coalitions that split the electorate fairly evenly. A small adjustment is all it'd take to tip the scales. If landslide victories are common, I'd say your political system is doing something wrong.