Imagine we lived in a world with moral consequences, perhaps the sort of world where evil people burn in hell or something like the twilight zone, where supernatural events strike down bad people, rather than the real world.

Lying to people to try to get them to vote against their economic interests seems the sort of thing that lands people in hell or haunted by an evil doll in such a universe.

"He's just making his case" doesn't really seem like sort of reasoning that would follow in a moral universe. The import thing is "is that case moral?"