Congress has the ability to override EOs. And there are already 'multi-state' plans under the ACA, both my son and cousin had one. I haven't read the EO itself, but I'm sure there are things slipped in to further undermine the ACA market.
The withdrawal from UNESCO is just another step in Trump's isolationist policies. But in his case it's not the 'typical' isolationism, which is more of a 'charity begins at home/American first!' thing. It's to isolate the US from the outside world to try to restrict free flow of information and for his purpose of building a plutocracy. He's gradually removing us from all the organizations and treaties that make the rest of the world look on the US with a feeling of 'we're all in this together' and making us look like we don't care about the rest of humanity or about making this planet a healthy and safe place for all humanity to live in. He wants the rest of the world to turn its collective back on the American people so that when we cry for help, no one wants to offer it.
cozie we're OK where I live. The winds have turned and it's not supposed to be so smoky, although of course we're always on the alert as this is fire season. BFF's town has been put on 'alert' meaning no evacs ordered but they've been told to prepare 'go bags', get important papers together, and do a video inventory of their home's contents. There's a new fire within about 5 miles (as the crow flies) of their town. We're their out of area contact as she's home, her DH and DS are working, and their DD is at school. BFF's most freaked out about the fact that she'll have to tow their caravan to a safe location. Neither she nor I (we have one too) have ever really towed, but she's put on her big girl pants and knows that she can do it if she has to!