Palin accuses Obama of ties to second 'radical professor'

(CNN) - GOP vice presidential pick Sarah Palin on Wednesday said Democratic presidential contender Barack Obama has ties to a Columbia University professor who she described as "a former spokesperson for the Palestinian Liberation Organization."

"It seems that there is yet another radical professor from the neighborhood who spent a lot of time with Barack Obama going back several years," Palin said at an event in Bowling Green, Ohio.

"This is important because his associate, Rashid Khalidi ... in addition to being a political ally of Barack Obama, he's a former spokesperson for the Palestinian Liberation Organization," she said.