An important question is, where are we on the Laffer curve?
The notion of the Laffer curve has been used to justify all sorts of tax cuts, under the assumption/claim that we are to the right of the maximum, so that cutting taxes will actually increase revenues.
Serious economists generally don’t believe this holds true in the U.S. right now, but the lure of the idea is undeniable: lose weight by eating more ice cream!