Ben Holland, Bloomberg Editor, penned a 12/21/18 article noting:

“Halfway through Donald Trump’s first term, it’s getting easier to piece together an account of how his policies are supposed to drive economic growth.

And the economy is, in fact, expanding pretty fast –- but not necessarily for the reasons Trump said it would. The president promised to squeeze more American growth out of businesses and foreigners. Instead it’s the government, deploying its balance sheet via deficit-spending, that’s doing the work.”