In campaign news, Barack Obama is accusing Hillary Clinton of using the politics of fear following the release of this new Clinton campaign ad that suggests Obama lacks the security experience to keep America safe.

Text of Clinton ad: “It’s 3:00 a.m., and your children are safe and asleep. But there’s a phone in the White House, and it’s ringing. Something’s happening in the world. Your vote will decide who answers that call, whether it’s someone who already knows the world’s leaders, knows the military, someone tested and ready to lead in a dangerous world. It’s 3:00 a.m., and your children are safe and asleep. Who do you want answering the phone? I’m Hillary Clinton, and I approve this message.”

The Obama campaign responded by releasing a similar television ad.

Text of Obama ad: “It’s 3:00 a.m., and your children are safe and asleep. But there’s a phone ringing in the White House. Something’s happening in the world. When that call gets answered, shouldn’t the president be the one, the only one, who had judgment and courage to oppose the Iraq war from the start, who understood the real threat to America was al-Qaeda in Afghanistan, not Iraq, who led the effort to secure loose nuclear weapons around the globe? In a dangerous world, it’s judgment that matters. I’m Barack Obama, and I approve this message.”

The jabs over national security come as the candidates race toward Tuesday’s crucial votes in Ohio and Texas that could likely determine the Democratic nominee.