Reaganomics voodoo economics.
The Big Lie of Republican economic policy.
From Fact Check dot org. Follow the link for a more nuanced explanation, including very a description of the very limited circumstances in which there may be a soucon of truth hidden in the Big Lie:
A: No. In fact, economists say tax cuts do not spark enough growth to pay for themselves.
But it is without doubt that Republican tax cuts make the rich richer and the poor poorer.
That’s why Republicans have to lie about them.