CNN's Peter Hamby reports that Louis CK, the comic who repeatedly attacked Sarah Palin with vile sexual slurs, has withdrawn from headlining the 68th annual Radio and Television Congressional Correspondents Association dinner set for June 8, 2012 in Washington, D.C. Hamby quotes Louis CK's agent saying, "He just didn't want to do it anymore."The decision by Louis CK to drop out of the dinner came on the heels of a boycott of the dinner over his appearance by Fox News' Greta Van Susteren announced last night.Free Republic gave prominence to Louis CK's role at the dinner and his vile attacks...