I think President's Trump overall strategy here is: a) remove ability of states to set national policy on environment regulations b) pull the 'global warming

I think President's Trump overall strategy here is: a) remove ability of states to set national policy on environment regulations b) pull the 'global warming discussion into the constitutional courts ( where it might (or might not) get cleansed from the claims that are impossible to confirm, or asks that impossible to implement constitutionally. I suspect the 54 Mpg average for a fleet, will specifically go into questioning from the above angles. c) get the courts, potentially rule on relative power and scope of Federal agencies (eg EPA vs NHTSA) (as before these kinds of things were set jointly). d) Conspicuously Remind California, that defecating on Federal laws about immigration, federal elections and other national/constitutional matters, will continue to have negative impact on their ability to get special treatment from Fed gov. --- This specific set of actions, and the ones that will be coming on this subject -- seems to be result of multi-year review that President Trump and his team are conducting on all of ex President Obama's admin 11th hour executive actions (there were a slew of them). [2] The letter [1] from automotive industry alliance, is asking this in 2016: ".... We urge EPA to reconsider imposing such a far-reaching mandate on entire industry without adequately considering the consequences, and without giving stakeholders a meaningful opportunity to comment. The MY 2022-2025 standards threaten to depress an industry that can ill afford spiraling regulatory costs. If left unchanged, those standards could cause upt to 1.1 million American to lose jobs due to lost vehicle sales. And low-income households would be hit hardest The Alliance is not asking EPA to make a different Final Determination at this time. All we are asking is that EPA withdraw the Final Determination and resume the midterm evaluation, in conjunction with NHTSA, consistent with the timetable embodied in EPA's own regulations. We believe that, if carried out as intended, the Midterm Evaluation can lead to an outcome that makes sense for all affected stakeholders and for society as a whole..." ...." By the way, personally..., this letter might have a merit, but reads a bit like the coal mining discussion (where coal mining owners and execs are warning about job losses in the industry ..... but mowing down whole mountains, and causing lung deceases is ok....) [1](https://autoalliance.org/wp-content/uploads/2017/02/Letter-to-EPA-Admin.-Pruitt-Feb.-21-2016-Signed.pdf https://autoalliance.org/wp-content/uploads/2017/02/Letter-t...) [2](https://www.latimes.com/business/la-fi-hy-epa-mileage-standards-20170113-story.html https://www.latimes.com/business/la-fi-hy-epa-mileage-standa...)