In American politics, who has more money to spend -- the right or the left?

Inspired by this recent Democratic Underground thread about “The Big Soros Lie.”

I don’t mean just electoral politics, but the entire networks of political think tanks, organizations and media outlets. David Horowitz’s Discover the Networks site portrays a vast web of interlocking lefty organizations with visible trails of massive funding from wealthy donors. Not to dispute the reality of any of that (though some would), but while on the left you’ve got George Soros and a few Hollywood celebs, on the right you’ve got Richard Mellon Scaife, the Olin Foundation, the Coors family, the National Association of Manufacturers, etc. Which side engages in more “checkbook activism”? Which side contributes more $$$ in toto?

Related but separate question: Which major political party has more money to spend on campaigning in a given election cycle – the Dems or the Pubs? Does anybody have good figures?

It is really a hard question to define. Right wing talk radio is very popular all across the nation even here in very liberal Boston. Conservative TV commentary shows like Bill O’Reilly are as well. Liberal media except for some newspapers and a few magazines tends to tank hard and fast because of lack of interest.

How do you draw the line between outlets that people choose to listen to themselves and those that are a push for a given political party?

I think the people with the big money are more interested in buying access to the party in power rather than caring who is in power. The Dems are seeing a lot of money right now because it looks like they will be in power for a while.

In reality, Hollywood does not have that much money; it is just very visible. Insurance, aerospace, and high-tech are all bigger. All of those industries have things they want: insurance companies are afraid of a single-payer medical system, aerospace wants an in on the appropriations process, and Gates wants more H1-B visas. Hollywood (as an industry) is more concerned with things like copyright, anti-piracy, etc. They seem to have both liberal and conservative politicians in their pocket.

That’s how it used to be. It seems to have changed somewhat since Goldwater tanked in '64.

Talk radio makes its own money, or is expected to, unless it’s on a community/religious/NPR/otherwise-noncommercial station. If a given commercial station/show is operating at a loss and being subsidized by an outside donor, that’s a clue right there. Not that I know of any examples (possibly Air America, but possibly not).

I think the size of electoral campaign chests depends largely on the nature of the election. For instance, the Democratic Presidential candidate Clinton has raised the most money so far for the 2008 campaign. But Republican candidate Romney comes in a close second, and other Republican candidates apparently out-fundraised most other Democratic ones:

For national campaigns in general, data from the Federal Election Commission apparently indicates that Republicans have had a substantial financial advantage over Democrats for several years, but that the gap began to close in the 2006 elections: