This is a really good opinion piece on GOP tax policy, and why it is bad for our country. We have real life, concrete, contemporary examples of GOP tax policy in action:

Like many states controlled by Republicans, Oklahoma has for some time been putting the GOP theory into practice: low taxes, little regulation and weak social spending. On the tax front, it has been particularly aggressive, since state law mandates that no tax increase can pass without a three-quarters majority in the state legislature. This has created a one-way ratchet, in which any tax cut is effectively permanent and taxes can only go down.

And has it produced the boundless prosperity Republicans predict? Well, no. In fact, the state is now in a full-blown fiscal crisis. Here’s a summary of the situation from NPR:
Riding high on the oil boom of the late 2000s, the state followed the Kansas model and slashed taxes. But the promised prosperity never came. In many cases, it was just the opposite.
Around 20 percent of Oklahoma’s schools now hold classes just four days a week. Last year, highway patrol officers were given a mileage limit because the state couldn’t afford to put gas in their tanks. Medicaid provider rates have been cut to the point that rural nursing homes and hospitals are closing, and the prisons are so full that the director of corrections says they’re on the brink of a crisis.
Just to reiterate: The state has so little money that 1 in 5 schools is open only four days a week. Gov. Mary Fallin and Republicans in the state legislature are debating a plan to increase taxes to try to address some of these problems, including giving a raise to teachers. Which is sorely needed, because Oklahoma pays its teachers less than any other state in the country.
https://www.washingtonpost.com/blogs...=.7396a063c4a1