Two steps

Step 1: Read this. (Link via Atrios.)

It's an open secret in Washington: Nonprofit doesn't always mean nonpartisan.

But RAW STORY has found that the Republican National Committee lists a panoply of conservative nonprofits as "GOP groups"--in direct violation of the nonprofit charter.

You'll want to read the whole thing.

Step 2: Call the Internal Revenue Service at (800)829-0433 and tell them they ought to look into this.