State and local governments can still make progress, at least.
http://www.utilitydive.com/news/massachusetts-lawmakers-float-aggressive-bill-mandating-100-renewables-by/434612/
Trump and his lapdogs can bury their heads in the sand all they want, but climate change is a big fucking problem, and fossil fuels have done more harm than good for about thirty years now. It's up to state officials and regular citizens to fix this, now.
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Yeah, that wall's never fucking happening, unless he pays for it himself. There isn't a single course of action he could take to make Mexico pay for a wall that he's got no right to build in the first place.