From an interview with Tom Schaller of FiveThirtyEight:
“If there’s a silver lining, it’s that we conserved our resources. We spent half what the RGA spent,” said Daschle. “It was the right call because neither race would have been helped by more spending.” He said the DGA spent $4 million in VA to the RGA’s $5M, and about $3.5 million in New Jersey to the RGA’s $7 million.
You don’t hear politicos say that more campaign money would have been useless very often.