This is from 2018 - "A new study published in the journal Political Psychology carried out by the political scientist Ian Anson at the University of Maryland Baltimore County, not only found that the Dunning-Kruger effect applies to politics, but it also appears to be exacerbated when partisan identities are made more salient. In other words, those who score low on political knowledge tend to overestimate their expertise even more when greater emphasis is placed on political affiliation." - Psychology Today

And it's still letting DeSantis, Biden, Trump and even Tucker Carlson get away politics as usual while tearing the country apart.  Karl has some explanation and suggestions.