From the NBC political team
As of 12 a.m. ET, with the projected win of Democratic incumbent Daniel Inouye in Hawaii, Democrats now have control of 48 seats in the Senate.
Two independents — Bernie Sanders of Vermont and Joe Lieberman of Connecticut — caucus with Democrats.
That means Democrats have effectively retained control of the U.S. Senate unless Republicans are able to bring any moderate Democrats or independents into their caucus.
Republicans have picked up four Senate seats so far tonight. They would have needed to net 10 seats to achieve a majority in the Senate.
There are still tight races to be called in Colorado, Illinois and Nevada that will affect the final count as well.