You assured us in an earlier post that tax cut advocates only care about the year following the cut.
What post? What are you talking about? Tax cut advocates predict that we'd see 3% growth in the year following the cut, and that the cut would pay for itself in increased economic activity.
But you now want to change your argument to agree with me that longer-term effects are more important.
You are losing control of your argument and it's forcing you to make arguments that make no sense. You cannot attribute any increase in revenues to a tax cut without making the argument that tax cuts pay for themselves, which you are saying isn't the case because tax cuts reduce revenues, just like they have every time they've been done since 1980.
However, the longer-term effect of increased spending did not occur until after the revenue increase in 1965, so the spending did not cause the revenue increase.
Of course the spending caused the revenue increase because revenues come from spending.
You're way out of your depth here.
So all your insults that spending increased 50% was a bunch of BS because it had nothing to do with the revenue increase. 1964-taxes were cut. 1965: spending declined, revenue increased.
As I said, this is an outlier. And you're argument is also that the tax cut drove long-term revenue growth. That's what you've been arguing. But long-term, spending increased, and revenues come from spending.