Imports surged 3.6% in December while exports declined 1.7%, causing a deficit over $70B vs. expectations of ~$55B. This is causing economists to cut Q4 GDP estimates (e.g., Atlanta Fed lowered from 3.6% to 3%).
The trade deficit is a huge component of GDP. The only ways to boost GDP are productivity enhancements, shrinking the trade deficit (which had been happening but backed up in Nov/Dec), and consumer spending.