https://www.washingtonpost.com/politics/2022/09/12/democrats-interfere-republican-primaries/

You'll have to find a way around the paywall, probably. Bolduc's one of the candidates they've done this on, dumping $3.2 million on ads to enhance his campaign during the primary.

I trust most people would agree WAPO's at least not a conservative source. I've heard the story talked about by people all over the map, I'm pretty sure including places like TYT which I think everyone will agree is left wing (criticizing the establishment for it), as well as Jimmy Dore which people might disagree on how left vs right he is (he sure likes to state that he's a progressive), and of course conservatives freely talk about it.

My take on the overall criticism of it is people on the left think it's playing with fire and a betrayal to their base. People on the right find it dirty and some are crossing their fingers it backfires on them.

Personally, I hope most people would agree that's it's dirty and not healthy for democracy, regardless of whether they support these candidates or not.