If you read about congressional gerrymanders these days, you might come away with the impression that it’s a Republican thing. Those who acknowledge that Democrats also gerrymander often try and cast this as a response to GOP gerrymandering.

That’s a tall tale, and it’s only one of the many misunderstandings resurfacing about gerrymandering as Texas Republicans consider a rare mid-decade redistricting to increase their majority in the state’s congressional delegation.