It doesn’t matter who the Senators or Governor are. What matters is what a state's perceived status is considered to be during Presidential cycles, Wyoming, Mississippi, Oklahoma, and other conservative states are considered rubber stamp red states, which is why candidates don't even bother going there. They do however campaign a lot in FL, because it is considered a swing state. Who the current Senators or Governor are doesn't matter. AZ and GA currently have two Dem Senators each and no one considers them blue states.
On the 2nd point, states with higher population densities are obviously going to be affected more by COVID than sparsely populated flyover states, so obviously CA, NY, TX, FL, and PA are going to top 5 in the death count.