These tariffs were targeted at congressional leaders:
" "The idea is, you look at a map of the congressional districts of the United States, you look at which members of Congress are in leadership positions and then you look at the big industries in those districts and then you draw up your list accordingly," she said. "And this list was clearly drawn up with this in mind." (http://www.cbc.ca/news/politics/steel-tariff-maple-syrup-toi...)
It's almost like indirect election influencing vs direct election influencing (Russia in 2016). Somehow one is bad, but the other isn't.
Foreign governments do lobby our government, and register for the privilege. This is not the same as Trump Jr conspiring with Russians in Trump tower.
"The European Union will hit back at the heart of the United States, slapping tariffs on products like Harley-Davidsons, Kentucky bourbon and bluejeans, if President Trump goes ahead with a plan to place tariffs on steel and aluminum imports, the president of the bloc’s executive arm vowed on Friday."
https://www.nytimes.com/2018/03/02/business/europe-steel-tar...
Could also use tariffs to try and hit the states that voted for Trump the hardest.