Q.My Kumquat Has Started Dropping All Of Leaves. .
it is damp but not soaking. This was a gift in Nov. 2019. I had recently removed 3 suckers.

Certified GKH Gardening Expert
This is usually a response to a decrease in light, and humidity. It may be necessary to increase humidity, and provide a little extra lighting with a horticultural lamp.
These articles will help:
https://www.gardeningknowhow.com/edible/fruits/citrus/growing-citrus-trees-indoors.htm
https://www.gardeningknowhow.com/edible/fruits/kumquat/growing-kumquat-trees-in-pots.htm
https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm