Fetterman knocks Oz with carpetbagger attacks, digs into New Jersey, Pennsylvania rivalry

It’s not often that candidates running for office intentionally run ads in neighboring states — much less one focused entirely on an opponent.

But that’s what Pennsylvania Lt. Gov. John Fetterman did in the Senate race. He recently paid for a plane to fly a banner over New Jersey’s southern shore welcoming home TV doctor Mehmet Oz who is the GOP candidate after making a politically driven move from his New Jersey home overlooking the Hudson River to his in-laws’ home in the Philadelphia suburbs.

Mr. Fetterman, the Democratic nominee, is stuck on the...