Coals to Newcastle: U.S. Chamber spends $700K on McMahon

With nearly $80 million to play with over two campaigns, does Linda McMahon really need outside help on TV and radio? The U.S. Chamber of Commerce evidently thinks so.

It filed paperwork Friday disclosing the expenditure of $700,000 for time to air TV and radio ads promoting McMahon, the self-funding GOP candidate for U.S. Senate.

That now brings the outside expenditures in the Connecticut race to $6.6 million, with most of that spent by groups trying to help Democrat Chris Murphy compete on TV with McMahon, who spent $50 million in 2010 and nearing $30 million this cycle.