FROM CNN's Jack Cafferty:

Top Democrats are jumping all over Mitt Romney for comments he made about Russia.

Both Vice President Joe Biden and Secretary of State Hillary Clinton paint the likely Republican nominee as stuck in the days of the Cold War.

This all goes back to President Obama's so-called hot-mic controversy - when Mr. Obama was heard asking Russian President Dmitry Medvedev for some "space" on a European missile defense system. The President said he would have more "flexibility" after the November election.

Romney slammed Mr. Obama after that incident, calling Russia "our number one geopolitical foe."

But now Biden and Clinton are going after Romney for his limited foreign policy experience - and for calling Russia enemy number one.

Biden says it's not the Cold War 1950s. Although we have disagreements with Russia, he says they're "united with us on Iran" and that Russia is one of only two ways the U.S. is getting supplies into our troops in Afghanistan.

Hillary Clinton calls Romney's views on Russia "dated" and says there are more pressing foreign policy issues.

Romney's campaign shot right back at these criticisms, pointing out Russia's "opposition to crippling sanctions on Iran, its obstructionism on Syria and its own backsliding into authoritarianism." Romney insists that President Obama is too open to concessions when it comes to Russia.

The missile defense system has been a prickly issue between the two nations. The U.S. and NATO insist it would be used to protect Europe against an Iranian strike.

But Russia worries it would violate its sovereignty.

Here’s my question to you: How big a threat to the U.S. is Russia?

Interested to know which ones made it on air?

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