Tax revenue in have almost always risen most years (I think) largely due to the growth of the economy, the question is comparing it to how much it would be otherwise(also don’t forget to acount for inflation), also not renewing tax cuts is not raising taxes.
Lowering tax rates leads to lower revenue then would otherwise be taken in unless it is accompanied by significant closing of loopholes and/or increasing other rates. The lowering tax rates leads to more revenue (plus a free ponies) idea is based on the false assumptions based on the Laffer curve. The Laffer curve is basically a misused tautology: when tax levels are zero or 100% people pay no taxes, and that there is some sort of curve connecting those two things, and that if you’re on the right side of the curve you have moved into territory where increasing taxes leads to less revenue, I would say almost no non political economist think we are on the wrong side of the curve and even the advocates of the cuts only claimed that the revenue gained by the supposed large improvements in the economy would only replace a large percentage of lost revenue (ie we would take in less in tax revenue).
