In July of last year, Shirley Sherrod said she was going to sue Andrew Breitbart over the deceptively edited video that falsely portrayed her as a “racist,” and yesterday at CPAC she made good on that vow.

Andrew Breitbart, the owner of several conservative Web sites, was served at the conference on Saturday with a lawsuit filed by Shirley Sherrod, the former Agriculture Department employee who lost her job last year over a video that Mr. Brietbart posted at his site biggovernment.com.

The video was selectively edited so that it appeared Ms. Sherrod was confessing she had discriminated against a farmer because he was white. In the suit, which was filed in Washington on Friday, Ms. Sherrod says the video has damaged her reputation and prevented her from continuing her work.

Mr. Breitbart said in a statement that he “categorically rejects the transparent effort to chill his constitutionally protected free speech.”