Where have all the bellwether counties gone?
From 1980 to 2016, 19 U.S. counties voted for the presidential winner every time. But the streak was broken in 2020, when only one of those counties, in Washington state, voted for the winner, President Joe Biden. The rest voted for Donald Trump, the incumbent.

https://www.voanews.com/a/where-have-all-the-bellwether-counties-gone-/7832364.html

• Where have all the bellwether counties gone?

  From 1980 to 2016, 19 US counties voted for the presidential winner every time

  https://www.voanews.com/a/where-have-all-the-bellwether-counties-gone-/7832364.html