The statements in the article are as good as impossible to verify, no clear metrics, no formulas, no charts. Also the pretext that 'voters' vote around 'the economy' is hard to qualify nor quantify. What's clear to me is that a lot of voters believed someone who repeats things over and over and promises to 'fix' things with zero evidence to show for. It tells us more about effectiveness of repeating, fear mongering a…
The author's bio links to https://www.gene-ludwig.com/ which has a number of whitepapers.