President Trump says comic Kathy Griffin "should be ashamed of herself" for appearing in a video holding what looked like Trump's bloody, severed head. (May 31, 2017) (Sign up for our free video newsletter here)After widespread condemnation, comedian Kathy Griffin issued an apology on social media Tuesday for a photo of herself holding a severed head in the likeness of President Trump."I beg for your forgiveness," Griffin says in a 30-second video posted on social media. "I went too far."That didn't smooth things over with Trump, though, who responded to the stunt on Twitter Wednesday morning, calling it "sick!"UPDATE:&nbsp;CNN fires Kathy Griffin from New Year's Eve show&nbsp;Griffin's &ldquo;New Year's Eve Live&rdquo; co-host Anderson Cooper tweeted that he found the display "disgusting," &nbsp;and CNN released a statement as well, saying: "We found what she did disgusting and offensive. We are pleased to see she has apologized and asked that the photos be taken down. We are evaluating New Year&rsquo;s Eve and have made no decisions at this point."Update, May 31, 8:10 a.m.: Story added information about Trump's reaction Wednesday morning.