The Iran nuclear talks are continuing in Vienna after being extended last week. Negotiators say they aim to reach a Tuesday deadline, but the real deadline could be Thursday, the last day for President Obama to present an agreement to Congress before a mandatory review period of 30 days jumps to 60 days. Secretary of State John Kerry said that despite progress, the talks could go either way.

Secretary of State John Kerry: “We are not yet where we need to be on several of the most difficult issues, and the truth is that while I completely agree with Foreign Minister Zarif that we have never been closer, at this point this negotiation could go either way. If hard choices get made in the next couple of days, and made quickly, we could get an agreement this week, but if they are not made, we will not.”