Congress is preparing Sunday votes on a $900 billion relief package, but remaining obstacles could push final passage into Christmas week

Chip Somodevilla/Getty Images
Congress is gearing up to hold Sunday votes on a $900 billion relief package with a very narrow margin for error, and several policy disagreements remain.
Both chambers must approve the emergency rescue legislation along with a broader government funding bill by midnight or seek a stopgap spending measure to avert a government shutdown.
"This gets done today. No more delays," a senior Republican senator told Fox News.
Visit Business Insider's homepage for more stori