Other sources have cited Moody's Analytics as supporting Hillary's economic policies, but there are others, notably Oxford Economics, a Brit firm with offices in the US as well as the UK. That includes the Wharton School from which Trump graduated.
From CNN Money:
Oxford Economics found that if fully implemented, Trump's economic, tax and immigration policies would cost 4 million U.S. jobs, weigh down global growth and U.S. consumer spending, and could spark a trade war with other nations.
"Combining these policies together, the impact could be significantly negative for the U.S. economy," says Jamie Thompson, head of macro scenarios at Oxford Economics.
Oxford's figures are in line with other analysis. The University of Pennsylvania's Wharton Budget Model forecasts Trump's immigration policy costing 4 million jobs and Moody's economist Mark Zandi -- a Clinton supporter -- also forecasts a similar job loss under Trump.
Thompson argues that Trump could hurt the very workers he says he'll help in America's manufacturing sector. In Oxford's "adverse case scenario" Trump slaps a 35% tariff on goods coming from Mexico, like cars and air conditioners.
But the problem is that almost half of the parts in those cars and ACs originate from U.S. suppliers. In other words, U.S. manufacturers who ship to Mexico stand to lose customers if the U.S. imposes a tariff on the products they contribute to.
CNNMoney also found similar stories when we spoke to denim manufacturers in South Carolina. They send an overwhelming amount of denim to Mexico, where it is cut and sewn into jeans, which are sold in America. They say NAFTA, the trade deal with Mexico and Canada, is critical.
"Without NAFTA, we would be out of business," says Rich Turner, who employs 2,700 workers at his denim plant in Mauldin, S.C. Turner is still supporting Trump because he refuses to vote for Hillary Clinton.