evidence: Democratic presidential nominee Kamala Harris blasted former President Trump’s tax and economic policies, reiterating her claim that his plan to impose blanket tariffs on imports would cost Americans roughly $4,000 per year. [...] "He intends to enact what in effect is a national sales tax — call it a Trump tax — that would raise prices on middle class families by almost $4,000 a year," Harris said, adding, "Instead of a Trump tax hike, we will pass a middle-class tax cut that will benefit more than 100 million Americans." [...] The $4,000 figure is a familiar refrain in political contexts, hearkening back to the Trump administration’s claim that cutting the corporate tax rate in 2017 would raise the average household’s annual income by at least that amount. However, economists from the Joint Committee on Taxation and Federal Reserve found that that didn’t occur.