Trump did not eliminate all regulations or the ability to make more.  The problem has become regulators run amok.  The $2 billion cost to industry versus $100 billion benefit to "society" is a prime example.  The $2 billion assumes that industry will just eat those costs.  Power plants may be an exception to this but, in most cases, it is more likely the affected companies will move to a country where the environmental regulations are not nearly as high and impose a much higher cost on foreign "society" in the form of pollution.  Meanwhile, there are hidden costs to the US "society" in the lost jobs and the human welfare that comes with those jobs.  That $100 billion savings could be dwarfed by the overall cost of lost jobs and all the damage that does to a "society".  Eliminating pollutants that are known to cause cancer and human disease is one thing, but onerous regulations to reduce carbon dioxide is ridiculous.  It can be argued that even if CO2 does cause warming, said warming would be a net benefit (hundreds of trillions?) in that many more die because of extreme cold than because of extreme heat.  Regardless of that argument, putting a brake on and reversing some of the over-regulation of the last decade will only be a good thing for the US (net benefit of hundreds of trillions?).  Regulators have a habit of overdoing it to justify their existence.  I have seen that with safety regulators within companies.  Once the obvious problems are rectified, many poorly managed companies who create full time jobs for these safety regulators end up having to deal with the undue costs that are created with the ever "improving" safety that is created.  This doesn't happen in well-managed companies, but does anyone want to make the argument that the federal government is well-managed?