Source:
The New York Times Trump administration officials met with congressional leaders last month and told them they would probably give emergency approval to a coronavirus vaccine before the end of Phase 3 clinical trials in the United States, perhaps as early as late September, according to two people briefed on the discussion.
The move would be highly unusual and would most likely prompt concerns about whether the administration is cutting corners on approvals for political purposes.
...
Dr. Anthony S. Fauci, the infectious disease expert who serves on the coronavirus task force, has said early next year is the most likely timing.
...
One senior administration official who was briefed on the meeting said neither Mr. Meadows nor Mr. Mnuchin had suggested a vaccine could be approved as early as late September. The official was adamant that the administration would not approve a vaccine solely on the basis of foreign clinical trials.
Read more:
https://www.nytimes.com/2020/08/23/world/covid-19-coronavirus.html
Clearly Trump is pressuring the FDA to fasttrack an untested (and potentially dangerous) vaccine as his 'October suprise', to save his sinking campaign.