Original sentence: In April 2008, a Virginia group airing ads on Schaffer's behalf was accused of violating federal election law by paying for a 2008 election video ad for Colorado Republican Schaffer while claiming that it did not endorse candidates.The ad buy was criticized by Citizens for Responsibility and Ethics in Washington, a liberal activist group which "targets almost exclusively Republicans
Edited sentence: In April 2008, Citizens for Responsibility and Ethics in Washington, a liberal activist group which "targets almost exclusively Republicans," accused a Virginia group of violating Federal election law by paying for a 2008 election video ad for Colorado Republican Schaffer while claiming that it did not endorse candidates.In response, a parody ad was created