The testing capacity exists, if you count devices that have (still) not been approved for use. That is the primary nature of of the failure here.
https://twitter.com/JeffJacksonNC/status/1238811865481990144
So if that is true, the testing capacity isn't going to be limited just by device approvals. Also need to establish the protocols for other reagents and so on.
Why does it seem like people are using this rapidly spreading deadly virus as an argument for their political views...