2016 Democratic nomination
The group is hiring new staff in Iowa, New Hampshire and South Carolina.
Clinton is beginning to step up her campaigning for 2014 Democratic candidates.
"I feel so lucky I get to do my job in the Senate," she said.
"What is her agenda? I don't know. You don't know. She hasn't said," Sanders said.
Gov. Chris Christie leads Republicans in New Hampshire polling, followed by Sen. Rand Paul.
The off-the-cuff remarks highlight trouble he could face as a presidential candidate.
Gov. Jerry Brown said he believes Clinton can clinch the Dem nomination.
The Maryland governor could challenge Hillary Clinton for the Dem nomination.
Clinton holds a commanding lead among Democrats as she heads to the early caucus state.
Fundraisers told the Wall Street Journal that O'Malley is preparing to run.
Rep. Tammy Duckworth (D-Ill.) is also slated to attend a fundraiser in D.C.
Hillary Clinton is seen as a "sell-out" on a key, crucial issue.
Bill Clinton has been known to go off-message and become a distraction for his wife. And that begs...