The US imposed tariffs on Chinese and Taiwanese solar panels as well in 2014. https://www.nytimes.com/2014/12/17/business/energy-environment/-us-imposes-steep-

The US imposed tariffs on Chinese and Taiwanese solar panels as well in 2014. https://www.nytimes.com/2014/12/17/business/energy-environment/-us-imposes-steep-tariffs-on-chinese-solar-panels.html https://www.nytimes.com/2014/12/17/business/energy-environme... Prior to 1914 and for most of the history of the US the bulk of Federal government revenue was tariffs.