Who deserves credit for the strong economy?

What’s happening

During his State of the Union address last week, President Trump touted the strength of the U.S. economy. “I am thrilled to report to you tonight that our economy is the best it has ever been,” he said. Though some may quibble with such a bold statement, there’s no question that — at least by certain metrics — the economy is booming.

The economy is in the midst of the longest expansion in American history, as it continues to grow from the worst days of the Great Recession....