Vice President Biden brought the campaign trail to NYU on Thursday, hammering expected rival Mitt Romney for having a foreign policy outlook that he says would leave the nation far weaker. Our Josh Robin has the story.

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NEW YORK STATE -- "If you're looking for a bumper sticker to sum up how President Obama has handled what we inherited it's pretty simple: Osama bin Laden is dead. And General Motors is alive," said Vice President Biden.

And the Vice President says it might have been the opposite case had Mitt Romney was elected president four years ago.

Biden said, "Americans know that we can't go back to the future."

Back, because he says Romney is stuck in the Cold War.

“Just a month ago, Governor Romney, called and here again I quote, ‘without question our number one geopolitical foe’ is Russia,” Biden said. “As my brother would say, go figure.”

The republican's advisors didn't help matters Thursday when one used the expression "Soviet" to refer to Russia. But they say Obama undermines allies. He was caught last month telling a Russian leader that more flexibility in dealing with European missile defenses would come after the November elections.

"It is President Obama's track record that has sent a message to our friends and allies, be they in governments or be they in dissident movements, who want to stand with us, who want to lock arms with us, who are looking to American leadership, who are really left exposed and isolated," said Romney Foreign Police Advisor Dan Senor.

Romney officials declined repeated requests to speak on camera. Biden says the Republican has the confusing message. Like on Iran. Romney praises the President for tougher sanctions, but promises a very different policy with ratcheted-up military pressure.

And on Iran, Biden says that Romney's comments are not only misinformed, but actually dangerous. Loose talk of war, the vice president says, only drives up the cost of oil. And he doubted whether Romney would have done the same as Obama did when launching the military raid that killed Osama bin Laden. Though Biden may have diluted that thought with this unintentionally off-color aside.

"Now is the time to heed the timeless advice from Teddy Roosevelt: ‘speak softly and carry a big stick.’ I promise you the President has a big stick,” Biden said.