corporations who contribute to their campaign ads, including the following:
Prudential Financial sent in a $2 million donation last year as the U.S. Chamber of Commerce kicked off a national advertising campaign to weaken the historic rewrite of the nation’s financial regulations.
Dow Chemical delivered $1.7 million to the chamber last year as the group took a leading role in aggressively fighting proposed rules that would impose tighter security requirements on chemical facilities.
...Goldman Sachs, Chevron Texaco, and Aegon, a multinational insurance company based in the Netherlands, donated more than $8 million in recent years to a chamber foundation that has been critical of growing federal regulation and spending...
...health insurance providers funneled at least $10 million to the chamber last year, all of it anonymously, to oppose President Obama’s health care legislation.
...More recently, the News Corporation gave $1 million to support the chamber’s political efforts this fall; Chairman Rupert Murdoch said it was in best interests of his company and the country “that there be a fair amount of change in Washington.”
The News Corporation, the parent company of Fox News, also donated $1 million to the Republican Governors Association. Murdoch is well aware of the "fair amount of change" that the Chamber is working toward in the November elections:
...the chamber asserts in filings with the Federal Election Commission that it is simply running issue ads during this election season. But a review of the nearly 70 chamber-produced ads found that 93 percent of those that have run nationwide that focus on the midterm elections either support Republican candidates or criticize their opponents.