(CNN) - President Obama on Friday brushed off criticism from Sarah Palin that his agreement with Russia to restrict the use of nuclear weapons amounts to a dangerous sign of weakness.
"I really have no response," the president said tersely in an interview on ABC's Good Morning America. "Because last I checked, Sarah Palin's not much of an expert on nuclear issues."
Speaking on Fox News earlier this week, Palin said the recently negotiated treaty with Russia - seeking a reduction in the number of nuclear weapons held by the two countries - is an "unbelievable" move and that "no administration in America's history I think would ever have considered such a step."
"It's kinda like getting out in the playground, a bunch of kids ready to fight, and one of the kids saying 'go ahead, punch me in the face, I am not going to retaliate, go ahead and do what you want to with me,'" Palin said.
Obama said Friday: "I would say to them is that if the secretary of defense and the chairman of the Joints Chiefs of Staff are comfortable with it, I'm probably going to take my advice from them and not from Sarah Palin."
The treaty requires approval from two-thirds of the Senate to go into effect. Some of the chamber's Republicans, including Minority Leader Mitch McConnell, R-Kentucky, have indicated that they are not ready to support the deal.
"The Senate will assess whether or not the agreement is verifiable, whether it reduces our nation's ability to defend itself and our allies from the threat of nuclear armed missiles, and whether or not this administration is committed to preserving our own nuclear triad," McConnell said in a statement.