 Joan Rivers -- Sarah Palin Is 'Stupid and a Threat' 
 
 deserves criticism -- and BLAME -- for the horrifying shooting in Tucson, AZ ... this according to 
 
 Joan was at the Critic's Choice Awards party in Hollywood this weekend when things turned political -- and Joan exclaimed ... "This woman is just stupid and a threat. Joan Rivers: FOX Can 'Go F**k Themselves' Over Sarah Palin Controversy 
 
 Email This Joan Rivers says FOX News can "go f**k themselves" after canceling her Thursday appearance on the network's morning show for what she claims is retaliation for some biting comments she made about FOX contributor Sarah Palin. It all started when the loud-mouthed legend told TMZ over the weekend that critics were "right" to blame Sarah Palin for the tragedy in Tucson, Ariz. Reports surfaced on Wednesday that FOX heard the diss and nixed Joan and daughter Melissa's visit on 'FOX & Friends.' '"I actually voted for her terrible daughter over David Hasselhoff," she says. New York's doyenne of comedy accused the cable network of doing "damage control" after she went public with the story that she and daughter Melissa had been unceremoniously booted from Thursday's "Fox & Friends" guest lineup because of acid remarks she'd made about Fox News contributor Sarah Palin.
– Did a Sarah Palin insult get Joan Rivers kicked off Fox News? Depends who you ask. It all started when Rivers told TMZ that Palin is “stupid and a threat,” and that those who blame her for the Tucson shootings are “right.” Rivers and her daughter, who were originally supposed to appear on Fox & Friends today, then got a call telling them, “You're canceled on Fox because of what you said about Sarah Palin,” Melissa Rivers tells PopEater. (Joan adds that they were also told they were "banned.") And how does Joan feel about that? Fox execs can “go f*** themselves.” Fox quickly denied the report, telling E! in a statement that the show was simply overbooked and the booker “mistakenly canceled Joan’s appearance.” Rivers' rep adds that another Fox rep did call Joan to book her for tomorrow (Joan can’t make it—surprise, surprise—but her rep claims she’ll appear at a later date) and said the booker “should have never said” that the Palin comments got Rivers axed. In a later report, however, Rivers’ rep tells the New York Daily News that the comedian believes Fox is “a bunch of dirty liars and they’re backpedaling” and simply doing “damage control.” Click for more of Rivers’ side of the story.