Answer: When it has no heat.
One morning my wife mentioned that the clothes she put in the dryer the night before were still damp. I though this was strange since I had just changed the thermostat and the heating element in the dryer about 2 weeks prior. I started the dryer and looked at the Sense App and sure enough it was only pulling a fraction of the wattage from the days before. I did a few other tests to confirm and decided I would replace the heating element and the thermostat again. Once I removed the the thermostat, I tested it and found it was no longer passing current. The heating element did appear to be in good shape, but since I bought both of them (online),I decided to go ahead and replace with OEM parts I had just bought from a local appliance repair shop. Ten minutes later, the dryer is a dryer again, and I re-learned the lesson of you get what you pay for. No more cheap replacement parts.
Here is the screen shot from the dryer power meter, before, during, and after the thermostat failure,