For those who regularly litigate claims on behalf of employees under the Americans with Disabilities Act (ADA), the single biggest challenge has been (and remains) proving the existence of a disability. After all, the ADA is one of the only civil rights laws where your case can be thrown out because the employee is not a member of the protected class. While other laws have traditionally focused on the alleged harm by the employer, the ADA was crafted in such a way that forced employees to jump through a series of hoops just to get a foot in the door.