The former president said the U.S. isn't in "danger" and called for more answers.
More than 300 former Obama campaign staffers are urging Warren to run.
Clinton is discussing the details of how to launch a likely bid.
Sanders will meet with progressive groups in the state.
"It is a test of an individual’s resolve," the Texas governor said.
The potential 2016 contender will meet Prime Minister Netanyahu.
He is moving to Clinton's left on the issue.
The dealings raise questions about a presidential campaign.
Christie's home state has reservations.
Republicans believe they had a breakthrough year with female candidates.