This question has been settled with a final result: "<= -25 basis points". Trading has finished.
Website: FOMC Meeting Website
Information/Background: https://www.investopedia.com/terms/f/federalfundsrate.asp
Notes on current meeting: https://www.kiplinger.com/investing/when-is-the-next-fed-meeting
Note: If there is no published results (within two days of the usual annoucmement) or there is some sort of disruption then it will be counted as 0 or no change in the interest rate.