Are Uber drivers employees or independent contractors?

Are Uber drivers employees or independent contractors? Do a memo (maximum of 300 words) on this topic, as described below.

This timely issue is being or has been litigated in courts and before state and federal agencies at this time. All I want you to put into this memo is a very brief listing of the factual issues being looked at to resolve this matter. I do not want a list of topics from the “tests” in the text material. Rather I want examples of what various jurisdictions are looking at. For example: “What were drivers told they are? All jurisdictions.” Another example might be: “Who decides how many hours drivers work? Utah: drivers decide; South Dakota: Uber decides.” You do not need to cover all possibilities, just enough to illustrate you are familiar with what the main issues are.