Politico's Michael Calderone reports Fox News has sent a cease and desist letter to the Sen. John McCain campaign, demanding they remove the voice of anchor Major Garrett.

The audio clip used is from a report by Garrett, the correspondent covering the Sen. Barack Obama campaign, on Wednesday.

Part of the letter reads: "As Mr. Garrett is a non-partisan news correspondent covering the Obama campaign for Fox News, it is highly inappropriate, among other things, of your campaign to use him in your ad."

Just last week CBS demanded a clip of Katie Couric be removed from a McCain ad.

Click continued to see the McCain ad in question...