(CNN) – Sen. Chuck Hagel has become one of the most prominent Republicans to openly question VP nominee Sarah Palin’s qualifications on Thursday.
"She doesn't have any foreign policy credentials," Hagel said in an interview with the Omaha World Herald. "You get a passport for the first time in your life last year? I mean, I don't know what you can say. You can't say anything."
On her first overseas trip last year, Palin traveled to Kuwait and Germany to visit Alaskan National Guard troops.
In defending her own foreign policy experience, Palin has said that Alaska’s proximity to Russia gives her international expertise. Hagel, a senior member of the Senate Foreign Relations Committee, called that notion “insulting to the American people.”
"I do think in a world that is so complicated, so interconnected and so combustible, you really got to have some people in charge that have some sense of the bigger scope of the world," he added. "I think that's just a requirement."
Hagel, who broke with fellow Republicans over the Iraq war, has said he will not endorse either major party candidate. The Nebraska senator has said he would have considered being Obama’s running mate and was rumored to be on his VP short list.
Although Hagel is a longtime friend of GOP presidential nominee John McCain, he traveled to the Middle East with Obama in July. Hagel also came to Obama’s defense in May after the Democratic nominee and McCain had a dispute over the best way to deal with Iran.
Hagel, whose Senate term is drawing to a close, is not running for re-election to the Senate.