CNN

McCain said Friday his campaign will not launch an anti-Romney Web site.

WASHINGTON (CNN) - Sen. John McCain said Friday his presidential campaign will not launch a Web site attacking GOP presidential rival Mitt Romney's stances, despite purchasing the URL www.mittvsfact.com two weeks ago.

"We're not going to do that," the Arizona Republican said when asked if his campaign had plans to launch a Web site designed to attack Romney. "We're not going to set up a Web site against anyone."

On Thursday, Politico.com reported McCain's campaign had purchased the URL and planned to use it to showcase what they view as the former Massachusetts governor's shifting stances on certain issues.

A McCain aide confirmed to CNN on Friday that the campaign had purchased the site, but they did not know when - if ever – it would be used. He said campaigns often buy URLs for a low price just to have in their pocket, without intentions to use them.

The ongoing war of words between the two campaigns heated up earlier this week when McCain's campaign posted a YouTube video they claimed suggested Romney embraced abortion rights even after he has said he started opposing them. Romney's campaign fired back, calling the move desperate, and said the video was taken out of context.

– CNN's Steve Brusk and Marissa Muller