Trump doesn't know shit.

[dalton99a]

39. The term had a long history:

https://en.wikipedia.org/wiki/Trickle-down_economics

In 1896, United States Democratic presidential candidate William Jennings Bryan claimed in his Cross of Gold speech that his opposition based their policies on the idea that the success of the rich would "leak through" to the lower classes, stating: "There are those who believe that, if you will only legislate to make the well-to-do prosperous, their prosperity will leak through on those below."[8][9][10]

In 1932, humorist and social commentator Will Rogers wrote a column criticizing Herbert Hoover's policies and approach to The Great Depression and stated: "The money was all appropriated for the top in the hopes that it would trickle down to the needy. Mr. Hoover was an engineer. He knew that water trickles down. Put it uphill and let it go and it will reach the driest little spot."[11] In 2007, political commentator William J. Bennett credited Rogers for coining the term "trickle down" and observed its persistent use throughout the decades since.[12] ...

Following Reagan's election, the "trickle-down" reached wide circulation with the publication of "The Education of David Stockman", a December 1981 interview of Reagan's incoming Office of Management and Budget director David Stockman, in the magazine Atlantic Monthly. In the interview, Stockman expressed doubts about supply side economics, telling journalist William Greider that the Kemp–Roth Tax Cut was a way to rebrand a tax cut for the top income bracket to make it easier to pass into law.[17] Stockman said that "It's kind of hard to sell 'trickle down,' so the supply-side formula was the only way to get a tax policy that was really 'trickle down.' Supply-side is 'trickle-down' theory."[17][18][19] Reagan administration officials including Michael Deaver wanted Stockman to be fired in response to his comments, but he was ultimately kept on in exchange for a private apology.[20] Political opponents of the Reagan administration soon seized on this language in an effort to brand the administration as caring only about the wealthy.[21] In 1982, John Kenneth Galbraith wrote the "trickle-down economics" that Stockman was referring to was previously known under the name "horse-and-sparrow theory", the idea that feeding a horse a huge amount of oats results in some of the feed passing through for lucky sparrows to eat.[22] ...