Oh man, this was my 8th grade understanding in a Republican household.
However it's not very hard to look at the US economy and debt under Clinton, then Bush, then Obama as recent, alternating, and stark differences. Clinton had one of the best US economies in history with a budget surplus, Bush squandered that on wars and the 08 recession. Obama picked up the pieces of a recession and brought us back to economic strength from the brink.
Then there's the crucial point in history where the three consecutive conservative presidencies, Harding, Coolidge, Hoover led us to the Great Depression vs. FDR's birth of the modern American middle class...
(Yes, I read and appreciate Sowell. And when I say the president's names, I mean their administration's policies.)