Senate-elect Angus King, Maine independent, said Wednesday that he will caucus with the chamber's Democratic majority.
King announcement on Capitol Hill is no surprise, considering he received strong support from Democrats during his campaign.
The former Maine governor's decision will give Democrats a 55-45 majority over Republicans in the 113th Congress that adjourns next year.
He also said caucusing with the majority party makes sense because he could be more a part of the committee process and deciding which bills get consideration.
"I considered going it alone," he said. "But this simply wouldn't be practical. ... In the long run, I'd be relegated to the sidelines."