NewsBusters put together this montage of mainstream journalists' initial reaction to Donald Trump's announcement that he was running for president.



"There are no words! How can you even have a straight face right now?" exclaimed CNN commentator S.E. Cupp. "I was howling."



"Do you have any doubt that this is anything more than a carnival show?" wondered MSNBC's Andrea Mitchell.



MSNBC's Lawrence O'Donnell commented: "Hell has frozen over, and now we are stuck in the ice with Donald Trump."



"I can't tell if this is politics," MSNBC's Rachel Maddow said. "Or if this is just PR from a celebrity."



Jon Stewart called Trump's speech, "a half an hour of the most beautifully ridiculous jibber-jabber."