KEY POINTS
  • Researchers looked at 18 Trump rallies held between June 20 and Sept. 22 and analyzed Covid-19 data the weeks following each event.
  • The researchers found that the rallies ultimately resulted in more than 30,000 confirmed cases of Covid-19.
  • They also concluded that the rallies likely led to more than 700 deaths, though not necessarily among attendees.
U.S. President Donald Trump addresses supporters at a campaign rally outside Raymond James Stadium on October 29, 2020 in Tampa, Florida.

President Donald Trump's campaign rallies led to more than 30,000 coronavirus cases, according to a new paper posted by researchers at Stanford.

Researchers looked at 18 Trump rallies held between June 20 and Sept. 22 and analyzed Covid-19 data the weeks following each event. They compared the counties where the events were held to other counties that had a similar trajectory of confirmed Covid-19 cases prior to the rally date. Out of the 18 rallies analyzed, only three were indoors, according to the research.