Trump put in some tariffs on some Chinese made products to made the imported products a bit more expensive for US consumers. It was done as an attempt to allow US manufacturers to make similar items and not be underpriced by the imports.
He did it to support businesses and US workers and also to encourage US firms with offshore production to bring production back here. Tariffs with this intent are OK with US voters who want MAGA.
We are so dependent on a country that we will most likely be in a war with soon or at least someday.
Staying dependent is beyond moronic.