President Donald Trump's move to impose or threaten massive tariffs against China, Mexico, Canada and the European Union affect about $2 trillion worth of U.S. imports and have the potential to disrupt business for major Cincinnati companies that rely on foreign goods or that sell goods overseas.

Trump has also threatened to introduce tariffs - a tax on imports - on goods from Canada and Mexico, but paused these for 30 days after both countries agreed to boost border security. The US president has said tariffs are needed to help the American economy and to "protect" the country from the "major threat of illegal aliens and deadly drugs".