Check the graphic in TFA. The trend is downwards across party lines. There was a bump (from 50s to 70s) for dems when trump was elected but it continued a downtrend from that peak - even while he was in office.

The media industry ironically has a huge image problem - at its roots is the fact that their incentives do not align with their readership - they've actually made that readership a product to be sold to the highest bidder.