Obama and Clinton did nothing to mismanage anything like Trump did with coronavirus, to make the market crash like it did this Spring. That's why the market is up only 41% under Trump in 3 1/2 years whereas up 210% and 182% under Clinton and Obama respectively in eight years. Again, that "weak economy" saw a drastic reduction in unemployment under Obama and strong economy under Clinton.
You may want to look at the numbers prior to COVID-19. Neither Clinton nor Obama had anything like this to deal with. No COVID and this market and the overall economy would be superior to Obama or Clinton. Biden will crash the economy if he wins. There will be a small boon if/when a vaccine is approved but then reality will set in. More regulations, higher corporate taxes, higher personal income taxes, higher capital gains taxes, higher minimum wages and more "freebees" are no way to stimulate an economy.