Workers at LB Steel LLC manufacture wheel assemblies known as "bogies" to be used on the new Amtrak Acela trains which are being built in partnership with Alstom in Harvey, Ill., on Dec. 4, 2019. Scott Olson/Getty Images
For the gaggle of Democratic challengers in the 2020 presidential campaign, nothing is more inconvenient than President Donald Trump’s tax policies delivering on their promise. That’s certainly the case with the president’s corporate tax cuts.