He allegedly ruined more than 500 doses by purposefully leaving them out of refrigeration on two separate occasions.
A federal judge in Wisconsin threw the case out in a scalding ruling.
The president said at Thursday's debate that the country is "rounding the corner." There were more than 75,000 new cases on Thursday.
Tracy Cole was arrested during protests in Wauwatosa, Wisconsin, over the DA's decision not to charge the officer who fatally shot her 17-year-old son.
Trump won Pennsylvania by a hair in 2016, and right now he's polling 10 points behind Biden.
Ballots will be counted slowly, protests have already turned violent, and any challenge in the Supreme Court will be made more complicated by the death of Ruth Bader Ginsburg.
In some cases, ballots could be delayed getting to voters.
States are scrambling to hold elections in a pandemic. You should be preparing to vote by mail.
Police arrested Kyle Rittenhouse, a onetime police cadet, whose social media accounts indicated an affinity for the "Back the Blue" movement.
Kenosha, Wisconsin gears up for a second night of protests after the police shooting of Jacob Blake.