Jeb Bush will not be offering American voters a fantasy tax plan. Unfortunately, this is a detail too often worth noting when examining Republican tax ideas. Bush's economic blueprint, announced this week, doesn't replace the current income tax with a flat tax, a national sales tax, or some other tax based on a close reading of the biblical Book of Deuteronomy. Rather, if you assembled a random group of smart, GOP-leaning economists and told them to cook up a plan to boost long-term economic growth, their recipe would likely resemble Bush's "Reform and Growth Act of 2017." Which is why the Bush plan kind of also looks like the Mitt Romney plan from 2012.