In a recent post on this blog Nigel Bowles argued that Donald Trump will largely be able to carry out his policy agenda when he becomes US president in January. In this post Colin Provost joins the debate, concluding that in the areas of trade, health care, financial regulation and climate change Trump is likely to run into major obstacles. This is because many of Trump’s campaign pledges involve large, complex governing systems and he will have limited control over these systems in their entirety.  Nigel Bowles recently wrote on this blog that President-Elect Trump will be able to push through key parts of his policy agenda in the coming four years, because of the powers afforded to him by the US Constitution and …