George H W Bush was the one who coined the phrase “voodoo economics” in the primary.
You are right, Stockman was the “trickle down” guy...
From Wikipedia...
*Stockman was quoted as referring to Reagan’s tax act in these terms: “I mean, Kemp-Roth [Reagan’s 1981 tax cut] was always a Trojan horse to bring down the top rate.... 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.”[7] Of the budget process during his first year on the job, Stockman was quoted as saying, “None of us really understands what’s going on with all these numbers,” which was used as the subtitle of the article.[7]”