On midlevels:
Of all the things I could say about the future of EM, one thing I have zero, I mean zero concern about, is the worry that midlevels will "take over" this specific specialty. It's just takes too damn much skill, knowledge, experience and training to do what a boarded EM doc does, and do it fast, do it safely, and leave the majority of your patients satisfied enough to keep administrators happy. It's one of the, if not the most, under appreciated and most difficult specialties out there; the one that gets the least respect, but about which everyone says, "Oh, I could never do it."
There are some specialties, that have to worry because they are comparatively way over payed for drastically easier work. These specialties should be worried. If a nurse can do what you do, THEY WILL.
It don't doubt that the government will try to push midlevels, but in EM the liability is so high, it will backfire. There are just too many "not sick" people that turn out to have life and limb threatening issues and if you think it's easy to triage these out in 60 seconds easily then you either you haven't been doing this long enough or you're just going to be dangerous.
I don't think it will ever happen in EM, to the extent that board certified EM docs jobs are threatened. If you know of a high acuity ED that had no doc shortage and was FULLY STAFFED with boarded EM docs, who then got thrown out for cheaper midlevels, post it here, I'd be interested to read about it. Generally, mid levels in EM, are brought in to fill a void where a crisis shortage occurs, or to work in close supervision with docs cherry picking the people who aren't even sick, ie, who didn't need doctors to begin with.
I respect midlevels. They definitely have an important role, but that role is not to be doctor.