From the Morning Jolt, an early indicator that Chuck Schumer will be a far more interesting and unpredictable leader of Senate Democrats than Harry Reid was:

Schumer: Congress Has the Right to Disapprove Any Agreement with Iran
Speaking of national security, Senate Minority-Leader-In-Waiting Chuck Schumer could be a more interesting guy to lead the Democrats than we thought:
Democratic Sen. Chuck Schumer, one of Capitol Hill’s most influential voices in the Iran nuclear debate, is strongly endorsing passage of a law opposed by President Barack Obama that would give Congress an avenue to reject the White House-brokered framework unveiled last week.
The comments Monday by the Democratic leader-in-waiting illustrate the enormity of the task ahead for President Barack Obama and his team: While there’s no guarantee that Congress would ultimately reject an agreement with Iran, there’s an increasingly bipartisan consensus that Congress should at least have the ability to do so.
“This is a very serious issue that deserves careful consideration, and I expect to have a classified briefing in the near future. I strongly believe Congress should have the right to disapprove any agreement and I support the Corker bill which would allow that to occur,” Schumer said in an emailed statement to POLITICO.
Schumer had quietly signed on to a bill allowing congressional review of the Iran deal two weeks ago, but made little fanfare of his co-sponsorship. In a brief statement on Friday, he said only that he’d review the agreement. Now that the outlines of an agreement are known, Schumer’s emphatic statement that Congress has an important role becomes more significant, signaling to fellow Democrats that it’s safe to jump on board the review bill.
Harry Reid would never have done this. Sure, Reid publicly disagreed with Obama here and there, like on earmarks, and his staff did plenty of finger-pointing at the president after the disastrous 2014 midterms. But those were small compared to this, a giant “peace in our time” deal that Obama thinks will be his foreign policy legacy.
If the Senate has a chance to vote on the Iran deal, then there is a good chance the Senate will reject it.