NRSC/GOP groups seem downright obsessed with this race from a quick look at their Twitter. I get that defining Casey early is important, but I can’t believe they’re prioritizing this over NV and have released more ads on Casey than Tester/Brown.
Yeah, I don't exactly understand it. Maybe it's a recency bias thing; they held an R Senate seat in PA as recently as 2022 whereas in NV or MI they haven't in quite a while.
Another factor could be they believe McCormick would be able to finance a large part of this race on his won so they see it as a better investment.
Finally, they could just have internal data that convincingly suggests PA is a better R pickup opportunity, and that could be due to Rs being poised to make gains in PA and/or Dems are just in a good position in NV.