I am not sure what you say is true because I've read (numbers & perspective) otherwise but maybe you could clarify some things.
Are you saying the highest tax bracket before Reagan was at 90%? I thought that was the highest tax bracket under JFK.
Reagan didn't cut income tax rates across the board? or he increased more taxes than he cut?
I think you're looking at things incident by incident and not in context of the times. I don't recall the exact tax rate just prior to Reagan. The point I was making is that liberals parrot this 90% tax = prosperity line, and you're essentially validating this when you claim Reagan cut taxes from extreme levels. The truth is there was never a 90% effective rate or anywhere near it. Yes, Reagan lowered the tax brackets and simplified them into 4. He also closed loopholes and exemptions that offset the effects of lower rates, and increased SSIDI rates 6 times. He reversed a good chunk of his 1981 tax cuts in 1982, and they hadn't even taken effect yet so there was no tax-cut stimulus from this portion in the first place. He also did this all in a time of supply constraints to spur investment in real production. This sort of thing is not effective in the face of supply gluts and deflationary forces.
I thought I read that the type of government spending that increased under Reagan was entitlement(SS) spending because of the amount of retirees increased.
For this situation, it doesn't matter much to me exactly what and where government spending increased. Government taxed & borrowed & spent money into the economy, which made it stronger, which led households to feel good about prospects which led to a boom in private sector debt.
Was the debt not erased under Clinton/Gingrich as the liberals love to claim, or was is just the projected surplus that never materialized or wasn't used on debt reduction?
Not my strong suit so I really don't know. I speculate that a strong economy and booming private sector picked up the spending percentages that Clinton/Gingrich cut or froze or whatever they did. It's easy to slow spending in one area when a debt bubble is building in another. What ultimately mattered is that Flow of Funds figures marched steadily upward.