Anyone who wants to claim that supply side economics has failed doesn’t understand that government interventionism is the poison of economics.
And government HAS intervened, horribly and with malice aforthought.
We currently have the most anti-business administration EVER.
And higher taxes DO NOT equal higher growth.
LOWER taxes DO equal higher growth.
That HAS been proven, repeatedly.
Anyone who says otherwise IS trolling.
I've been quite clear that higher tax rates doesn't mean higher growth. In fact I've said a number of times that there is no statistically significant link between GDP growth and marginal tax rates.
LOWER taxes DO equal higher growth.
The data disagrees with you.