U.S. Dollar Index is down to a critical support level at 89.70

What's happening with the dollar, and what is the next possible move?

The index is now down to 2018 lows at around 89.70 and has bounced off twice in the daily chart at this critical level.
This level has significant values in terms of Fibonacci retracements, which are widely used by professional and algo traders.
The current price sits at 61.8 Fib retracement level, taken from the 2014 lows at 79 to highs of 2017 at 103 as indicated on the chart. The index is currently being tested for the third time at the time of writing and could potentially make its way back up if it holds above 89.70. 88.60 is another critical support level to look out for if it fails at 89.70