In a tweet this morning, President Trump celebrated the strength of the economy. Nothing strange about that. What is a little strange is that he seems, in the tweet, to be lauding the appreciation of the dollar — at least, I don’t see how it can be read any other way.
I don’t mind a stronger dollar, myself. But Trump himself seems to. Just a few weeks ago he was complaining about its strength, especially against the euro and the yuan. A rising dollar is also nearly universally understood to cause the trade deficit to rise. I don’t think the trade deficit is very important. But the president sure does.