anti-endorsement

plural anti-endorsements

1. An expression of disapproval for a particular individual or idea.

   “In fact, my team tells me your commercial should add another 10 points to our lead! I guess that’s why they call the Cheney anti-endorsement the gift that keeps on giving,” Lake said.

   2022 October 28, Jared Gans, “Kari Lake thanks Liz Cheney for ‘anti-endorsement’”, in The Hill, archived from the original on 01 Dec 2022

   1 more example

   While Sanders has employed the anti-endorsement in its barest form, he is far from alone, of course. […] This seems to me the most likely effect of anti-endorsements as well. They display faux outrage and promise brave perseverance in the face of criticisms that are often exaggeratedly portrayed as attacks.

   2019 October 7, Arthur C. Brooks, “What’s the deal with the anti-endorsement?”, in The Washington Post, archived from the original on 11 Oct 2019