New Jersey resident Dr. Mehmet Oz has hurdles ahead in his fledgling U.S. Senate campaign not the least of which is convincing voters that he actually lives in the state where hes running for office.

Dr. Oz, who has a syndicated daytime talk show, has launched a campaign for the U.S. Senate in Pennsylvania, a state he apparently hasnt called home since his graduate school days at the University of Pennsylvania.

The cardiac surgeon, a Republican, was asked about his residency on Sean Hannity s Fox News program, and he offered a nonspecific response in his first national interview since confirming his candidacy on Tuesday.

Oz said he lived in Philadelphia while earning his medical and business degrees at Penn, and it was in that city where he met his future wife, Lisa Oz, who also went on to become a TV personality.

I grew up just across the border, south of Philadelphia, said Oz, who was born to Turkish immigrants in Cleveland, Ohio, and grew up in Delaware from the time he was 3 through high school . He attended Harvard University before graduate school.