Larry Kudlow, are you flippin kidding me. The fact that you would even mention his name as an "economist" clearly indicates your ignorance of the field. He is a drunk and a coke addict, lost everything because of it. He doesn't even register in the top 500 economists in the world. I mean I am talking Heckman at the University of Chicago, Stiglitz at Columbia, Summers and Mankiw at Harvard, and yes, Krugman at Princeton. All in the top 50, actually Heckman is ranked number one, and there are several Nobel laureates in that list.
Yes, the stock market performed well under Trump, but he pretty much bought that success with his ignorant corporate tax cut. The value of a stock is essentially the predicted earnings after taxes, discounted for present value, over the next 20 years. That is called the Capital Asset Appreciation Model, CAPM. The increase in the value of the stock market is pretty much on par with the corporate tax cut. But when it comes to GDP growth, well as I have pointed out, Trump had the worst record since Herbert Hoover. And the result of that corporate tax cut, as Mankiw clearly predicted, was more rent seeking resulted in ineffective allocation of resources further constricting GDP growth.