Office of Management and Budget director Mick Mulvaney detailed President Trump’s 2018 budget proposal last week. Here’s what you need to know and what I have to say about it. Trump’s budget, like all other presidents’ budgets, is merely what the current administration hopes for and will not be enacted, includes $3.6 trillion in total spending reductions over the next decade with the biggest savings coming from the assumed adoption of the American Health Care Act, which faces quite a substantial hurdle in the Senate. The budget is titled: “A new foundation for American jobs” and this emphasis on economic...