WASHINGTON (CNN) -- Tennessee GOP Senate Candidate Bob Corker told CNN his campaign has asked the Republican National Committee to stop airing a controversial ad that implies his opponent Rep. Harold Ford, Jr. parties with playmates, but the former Chattanooga Mayor would not say whether he has personally asked RNC chairman Ken Mehlman to take the ad down.

"Everybody at the RNC from the top down knows that I want this down," Corker told CNN's Wolf Blitzer Tuesday when asked if he had directly called the RNC. "There are senators who are my friends, some of which are inside that are making calls that do the same. Everyone knows that we want it down."

Corker also called the ad 'tacky,' but would not say if he thought it was racist, as some people have asserted.

"I, you know, it's tacky and certainly has no place in this race," Corker said when asked if he personally believed the ad had racial overtones.

Corker and Ford are battling for retiring Senate Majority Leader Bill Frist's seat in a race that has become increasingly negative as Election Day draws near.