Wow, so he says Democrats should run on something and come up with some proposals of their own instead of just bashing the opponent? Truly brilliant! Ahead of his times! This will revolutionize American politics, never happened before!
A reminder that no economist has ever named or proposed a theory called "trickle-down theory."
Nah, but the author probably is referring to hardcore supply-side economics. The explicit goal of supply-side economics isn't to give money to the wealthy and see what happens, but since most supply-siders are mainly interested in slashing taxes on investment or cutting marginal income tax rates the end result is the same. Though some of their ideas have some merits.