Lots of debt

A Reuters analysis of U.S. household data shows that the bottom 60 percent of income-earners have accounted for most of the rise in spending over the past two years even as the their finances worsened - a break with a decades-old trend where the top 40 percent had primarily fueled consumption growth.With borrowing costs on the rise, inflation picking up and the effects of President Donald Trump’s tax cuts set to wear off, a negative shock - a further rise in gasoline prices or a jump in the cost of goods due to tariffs - could push those most vulnerable over the edge, some economists warn.

The consumer and gov both are expanding debt equally in order to get those projected GDP numbers.  A good part of the new debt has been increased interest charges.