Author Christopher Buckley says things got ugly fast when he endorsed Barack Obama for president at Tina Brown’s new The Daily Beast, and in response he’s quit his column for the National Review, the conservative magazine founded in 1955 by his famous father, William F. Buckley. He says National Review editor Rich Lowry “rather briskly” accepted the resignation.

Buckley’s vastly better known for his novels (Thank You for Smoking, The White House Mess, Supreme Courtship), than for anything in the National Review, and his resignation strengthens the already compelling argument that a witty conservative has become a contradiction in terms. His resignation can be read, of course, as an act of defiance against the memory of his father, who died in April, but Buckley explains persuasively that it’s his way of saying, “Dad, it’s not the same place without you.”