Milbank’s “Tears of a Clown: Glenn Beck and the Tea Bagging of America” has sold fewer than 1,600 copies nationwide since it was released Oct. 5, according to a source with knowledge of the figures.

Milbank’s publicist, Todd Doughty, declined to confirm a figure. “Random House does not release sales figures as a corporate policy,” he said.

Doughty said 38,700 copies of Milbank’s book have been printed.