Trump is not just pulling back on the efforts, he is actively working against them.
I think on climate change, the liberal states will make a strong contribution. CA, NY, and WA almost immediately announced an alliance as soon as Trump said he was pulling out of the Paris Accord - though technically he can't until 2020. However, as enthusiastic as the efforts by the states, the business community, NGOs, and individuals is, there is still a loss due to Trump. Listening to one of the panels as the Kerry Initiative Yale Climate Change forums, between all the talk of what COULD be done, Moniz and Pershing, who was one of the top negotiators in the State Department on Paris spoke of some pure science research that the US, and only the US, was funding on new methods of sequestration. This was not just to meet US goals, but work that could actually lower levels, rather than limiting how much was added. (Link - https://news.yale.edu/2017/09/15/watch-sessions-kerry-climate-change-conference-livestream )
On healthcare, blue states will face major budget problems if they wanted to insure that their people continue to get health insurance at prices that are even close to what they are this year -- after only Marco Rubio sabotaged them. What has happened is that on the cost sharing subsidies some states are already committing to sue. I also think that insurance is regulated by the state in most states. ( As someone who had excellent group health insurance from a major company, I can tell you one huge problem buying over state lines is that you may have no doctors on your plan. My dental plan, which worked beautifully in NJ where the corporate headquarters of the company were when I lived there, included only one dentist within 30 minutes of where we live -- and her reputation was deservedly bad. No big deal with a plan that does pay out of network - and it was dental, not medical. )
On Iran, NK, etc -- states have nothing to do with foreign policy.
Immigration - states can try, but the federal government is powerful enough that the state has difficulty protecting people. It is true that they can, and did, sue over provisions that were called illegal.
On taxes, the states have nothing to do with the IRS. In addition to the fact that the 1% do not need a tax cut, that missing revenue will - almost certainly - lead to cuts in programs when the magical growth predictably does not happen. (Can we ask for snap back provisions on these supposedly growth generating provisions if they don't work?)
= new reply since forum marked as read
