When was the last time the median House district had a Dem PVI?

[Torie]

Yes, if the nation overall is 54-46 Dem, a district that leans Dem 52-48 would have a Pub 2% PVI. The nation had a Dem lean generally, when the Dem's had their Tory wing in the South.  At the moment the partisan strength of the two parties is pretty evenly balanced, so PVI and partisan lean have become close to synonymous at the moment. It has not been always thus.