It seems obvious that the reason why this tweet came out this morning was to distract from the less-than-rosy GDP numbers that came out today (contraction of 33%). The only issue on which Trump is still fairly trusted is the economy (god knows why). His failure to competently respond to the virus is destroying the US economy, and if this becomes the narrative it will substantially harm this final pillar of his support. He knows his chances of winning a free and fair election are already dismal. If his remaining supporters become disenchanted with the image of him as a competent manager of the economy there is no way he and the Republican party more broadly will be able to hold on to power with even a thin veneer of legitimacy. Their solution? Attempt to remove free and fair elections as an obstacle to that power.