We've Been Trickled Down Upon Enough

The Legislature is now considering the Gianforte tax policy: cutting income taxes for the wealthy with the promise that a windfall for those at the top will somehow “trickle down” to the rest of us.

That familiar refrain is called “supply-side economics.” It’s been told and retold for decades by politicians and hucksters, but it’s not true. It’s a political-economic lie repeated so often for such a long-time that many inherently believe that it is true.

But check out the Kansas nightmare where cutting taxes for the wealthy created a fiscal disaster, falling bond ratings and drastic cutbacks in...