So here’s how it is: They’re as mad as hell, and they’re not going to take this anymore. Am I talking about the Tea Partiers? No, I’m talking about the corporations.

Much reporting on opposition to the Obama administration portrays it as a sort of populist uprising. Yet the antics of the socialism-and-death-panels crowd are only part of the story of anti-Obamaism, and arguably the less important part. If you really want to know what’s going on, watch the corporations.

How can you do that? Follow the money — donations by corporate political action committees.

Look, for example, at the campaign contributions of commercial banks — traditionally Republican-leaning, but only mildly so. So far this year, according to The Washington Post, 63 percent of spending by banks’ corporate PACs has gone to Republicans, up from 53 percent last year. Securities and investment firms, traditionally Democratic-leaning, are now giving more money to Republicans. And oil and gas companies, always Republican-leaning, have gone all out, bestowing 76 percent of their largess on the G.O.P.

These are extraordinary numbers given the normal tendency of corporate money to flow to the party in power. Corporate America, however, really, truly hates the current administration. Wall Street, for example, is in “a state of bitter, seething, hysterical fury” toward the president, writes John Heilemann of New York magazine. What’s going on?