Frelinghuysen is an institution at this point. I'd be shocked if he goes down.
Edwards was running in a deep red seat though. Frelinghuysen's seat is R+3 (and as superbudgie already said, Frelinghuysen is an institution).
I'd argue that Edwards was an instutition as well, given that he was in Congress for 20 years before he lost.
The Frelinghuysen family has been in politics for over 200 years. Let that sink in, since the founding of the United States. Frelinghuysen's father was a congressman for 20 years. I can't overstate how much of an institution this family is.