The agency responded Tuesday after receiving a barrage of complaints about the photo, which shows Griffin holding what appears to be the bloody severed head of President Trump.
Now, she says: "I sincerely apologize". Mitt Romney wrote, "Our politics have become too base, too low, & too vulgar, but Kathy Griffin's post descends into an even more repugnant & vile territory". I understand how it offense people.
Celebrity news website TMZ published a behind-the-scenes video on Tuesday of Griffin posing with the model head for a photo shoot.
"My children, especially my 11 year old son, Barron, are having a hard time with this", he added. Griffin had apologized on Tuesday after the controversy the photo caused.
Griffin then begged for the forgiveness from the audience and owned up her mistake.
Squatty Potty, a line of footstools for toilets, said Tuesday it was "shocked and disappointed" and was pulling a new ad campaign starring Griffin.
Griffin has co-hosted CNN's annual New Year's Eve program alongside Anderson Cooper since 2007.
A New Mexico casino has also canceled a performance by Griffin, who was scheduled to perform at Route 66 Casino, operated by Laguna Pueblo, on July 22.
This isn't the first time Griffin has found herself in hot water.