Here’s a historical look at average tariff rates.
I have been looking for more recent data. But as you can see, the EU has a higher tariff rate than we have. And they have a 0% tariff on each other (similar to our having no tariffs between states).
Trump is arguing that the tariff rate should be the same.
Now, I’m no fan of tariffs (they are a tax on your own people and are, frankly, stupid). But if they are going to exist, Trump should argue that he’s matching the tariff rates that other countries are putting on us.
But, again, Tariffs only hurt the home country. If he wanted to help Americans, he would eliminate tariffs altogether.