Mitt Romney may be taking a big risk by going negative against Newt Gingrich, but it’s still not as risky as Obama’s strategy, says AEI’s Michael Barone. (National Review)

But if Newt goes left, shouldn’t he be called out? (National Review)

Newt Gingrich, health care mandates and the Heritage Foundation. (Washington Post)

“Say what you will about Obama’s foreign policy, it has been rather clear about who the enemy is. If we want a constructive foreign policy debate, let’s drop the appeasement nonsense and argue instead about democratic realism, what it means and whether it’s the right idea to undergird American policy,” writes Brookings’ E.J. Dionne. (Washington Post)

The rundown on today’s think tank events. (Washington Post)

A new mirage in the Iraqi desert. (Washington Post)

“The situation in Iran could not be more dire. And shadow war alone doesn’t have a shadow of a chance to keep Iran from getting nuclear weapons. To keep the mullahs from getting The Button, the United States will need to bring the full weight of its foreign policy and military might to bear,” writes Heritage’s James Carafano. (Washington Examiner)

Cato’s Alan Reynolds argues extending the payroll tax cut is not at all for the middle class. (New York Daily News)

Manhattan Institute’s Nicole Gelinas: Tax-hike cheers: NY biz’s big bungle. (New York Post)

Cato’s Dan Mitchell: European Central Bank Research Shows that Government Spending Undermines Economic Performance (Cato)

Room for Debate asks: Are all bloggers journalists? (New York Times)