Once you strip away all the hysteria and madness surrounding Donald Trump's presidency, you're left with a policy agenda of a populist, big-government Republican. Whether or not you have a moral or personal case against Trump himself, the president's stated policy positions fall well within the contours of traditional right-left politics. Can the same be said of Democrats? I'm sorry, but across-the-board tax cuts, notwithstanding the panic-stricken reaction we saw, aren't particularly radical. Every Republican president going back to Warren Harding has passed some kind of rate reduction. Nor is Trump's stated position on constrained foreign entanglement, which is...