Trump Owns the Economy Now, for Better or Worse

President Trump is getting exactly what he wants on the economy, just as it starts to slow down.

The Federal Reserve has abruptly stopped its march toward higher interest rates, as Mr. Trump demanded. The tax cuts he signed in late 2017 are in full swing. His attempt to rewrite the global rules of trade are underway, and he proclaims himself happy with the array of new tariffs he has imposed. His recent comments suggest he is unconcerned about slowdowns in China and Europe, which he considers economic rivals.

But...