Admittedly, that is one big issue. But from a purely political angle, Trump is trying to control the narrative to increase chances of re-election. This narrative will have to include undercounted COVID-19 fatalities, and understated economic effects of the failure to contain the pandemic. It cannot work if it is presented side-by-side with best estimates of actual numbers. Suppressing these numbers is the obvious goal here and leveraging money and political power over the legal system are the means.