Here comes GDP ...
Economists estimate a revision to 2% from 1.9% growth, according to Bloomberg.
The second reading was weaker than expected despite a surge in personal consumption, especially on medical care. Overall personal consumption increased by 3%.
This print is the final reading on fourth-quarter economic growth until annual revisions for all of 2016 are released later.
It's also the last big piece of economic data that covers President Barack Obama's presidency. The fact that it's GDP - the most comprehensive reading on US economic growth - is important, because President Donald Trump has vowed to return the economy to annual growth above 4% during his presidency. However, this would be very difficult to achieve, and is above the most bullish estimates from the Federal Reserve and the International Monetary Fund, among others.