U.S. Secretary of State John Kerry said it would be nearly “impossible” to extend the nuclear negotiations with Iran. Kerry and Iranian Minister of Foreign Affairs Mohammad Javad Zarif were not able to reach an agreement in Munich Sunday.

"Either you make the decisions to prove your program is a peaceful one, or if you're unable to do that, it may tell a story that none of us want to hear," Kerry said on NBC’s “Meet The Press." "The only chance I can see of an extension at this point in time would be that you really have the outlines of the agreement.”

Zarif is not worried about an agreement. "I don't think if we don't have an agreement it will be the end of the world," Zarif told the Munich Security Conference, according to Reuters. He added future talks would probably be fruitless and thus a waste of time. "I do not believe another extension is in the interests of anybody as I did not believe this extension was either necessary or useful.”

After the last extension, both sides agreed to finalize the most important parts of an agreement by March so a June 30 deal could be reached.

Kerry also addressed Ukraine and the Islamic State, the Islamic militant group also known as ISIS.

He said the U.S. would send more aid to Ukraine to help in the fight against Russian separatists. "I have no doubt that additional assistance of economic kind and other kinds will be going to Ukraine," he told “Meet The Press.” 

Sen. Ted Cruz, R-Texas agreed, but argued the United States is not meeting its obligations to Ukraine. "We need to be providing defensive arms to the people of Ukraine,” Cruz said on ABC’s “This Week."

When it comes to ISIS, Kerry said the U.S. is “on the road” to defeat the terror group, and Cruz said the Kurds, armed with U.S. weapons, can handle the job. “The peshmerga are trained, effective fighters. They are close allies of us,” he said. There needs to be a “focused, direct military objective” to fight ISIS.

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