During a campaign stop in Dayton on Wednesday, Vice President Joe Biden said there is "no place in the civilized world" for the attack that killed U.S. Ambassador Chris Stevens and three other Americans at the U.S. consulate in Libya.
Biden also reinforced President Barack Obama's vow to punish those responsible for the attack. He spoke at Wright State University.
Wright State had a role in the 2008 race: Republican John McCain introduced Sarah Palin as his running mate there.
Biden called Stevens, a former Senate aide, "a really fine, fine man" and said he and other U.S. diplomats serving overseas were "courageous Americans."
Biden did not mention criticism by Republican presidential challenger Mitt Romney, who condemned the attack and criticized the Obama administration for its initial response to a separate incident Tuesday at the U.S. Embassy in Cairo.
Instead, he talked about the economy and jobs for the area.
"Strengthen the economy and broaden opportunity, and in order to do that, we need to broaden the private sector not the privileged sector," said Biden.
Many Republicans said Obama should not get credit for created jobs in Ohio, but Gov. John Kasich should.
Republican VP candidate Paul Ryan was slated to speak in southwest Ohio Wednesday evening at the Clermont County Fairgrounds, east of Cincinnati.
Ohio has been the focus of a number of campaign stops by both parties during the last few weeks.
Obama's campaign says the Democrat will return to Ohio next Monday with stops in Columbus and Cincinnati.
GOP presidential nominee Mitt Romney was in Mansfield two days ago.
Polls have indicated a tight race with Obama slightly ahead in the swing state, considered likely to be crucial to Romney's chances of unseating him. Obama carried Ohio in 2008, after George W. Bush won Ohio twice.
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