Madelyn Sanfilippo and Yafit Lev-Aretz reflect in NiemanLab on the impact of the structure of the news media market, and innovations in the delivery of news, on coverage of the 2020 elections.  The lede:

Coverage of the 2020 U.S. presidential election will mark the beginning of gerrymandered news coverage, as hyper-personalization and geotargeting are applied at scale in news apps and in mobile push notifications.

. . .

The 2018 midterm elections provided a first glimpse of location-based targeting in journalism, with major news apps and aggregators using location data to personalize push notifications. This was most prominent in the Florida gubernatorial race: National news outlets provided not only different push notifications at different times to local and national audiences — they also fragmented the state, with different alerts sent to users in Orlando and Tallahassee, Miami and Fort Myers.