This dynamic is interesting but complicated. While it's plausible there's a relationship between political partnership and COVID spread, e.g. if Trump voters are doing less distancing, right now by far the best predictor of a state's R is how many people had COVID before. https://twitter.com/binarybits/status/1273378553325903874
This graph compares the total number ever infected via @youyanggu versus current estimates of R via http://rt.live . There is a strong (correlation = -0.69) inverse relationship. The *less* COVID a state had before, the *faster* it's spreading now.