Apparently Hillary noticed the back-and-forth between McCain and Obama about visiting Iraq:

In recent days, Obama has been fending off attacks from Sen. John McCain, the likely Republican nominee, about his paucity of visits to Iraq. The Illinois senator made his first trip to Iraq in January 2006, and now says he is considering a second. McCain, who has visited Iraq eight times, has used the issue to criticize Obama’s foreign policy credentials. Obama, he says, “does not have the knowledge or the experience to make the judgments. Presidents have to listen and learn. Presidents have to make judgments no matter how popular or unpopular they may be.” In her campaign stops, Clinton customarily pauses to praise McCain for his service to the country before going on to criticize his policy positions and cast them as a continuation of the Bush administration. But as she campaigns in South Dakota in advance of its Tuesday primary, Clinton added an extra recollection to her intro. “I have the highest respect and regard for Sen. McCain, he and I have actually gone to Iraq and Afghanistan together,” she said. “And I honor his service to our country and his patriotism.”

I like the cut of your jib, Senator. You don’t just twist the knife; you dip it in lemon juice and salt first.