Sen. Tom Coburn (R-Okla.) on Sunday said that Attorney General Eric Holder should not be in charge of investigating the Justice Department’s (DOJ) seizure of communication records of journalists who reported on classified information.

“You cannot investigate yourself,” said Coburn on CBS’s “Face the Nation.” “I think it’s a total conflict of interest.”

President Obama has stated that Holder is investigating claims that the DOJ overreached in its efforts to tamp down on leaks of confidential information.

Coburn stopped short of calling for special prosecutor to look into the claims that the DOJ breach reporters’ rights to privacy, as some Republicans lawmakers have done, however. But he insisted that someone other than Holder should lead the review.