As President Donald Trump’s first year in office drew to a close, Washington gave us the Tax Cuts and Jobs Act of 2017. That legislation reformed the system in conventional Republican fashion by broadening the base (subjecting more income to tax) and lowering rates. On the corporate side, they did this mainly by closing avenues to avoid tax on international income. On the individual side, they did it by raising standard deductions and eliminating or limiting personal deductions such as mortgage interest and state and local taxes.