Andrew Breitbart acolyte and sorta ACORN stinger James O’Keefe pleaded guilty, along with three other conservative activists, of trying to enter the offices of Louisiana senator Mary Landrieu with accomplices dressed as telephone workers. O’Keefe, 25, will get three years probation, 100 hours of community service, and a $1,500 fine, but will no longer, presumably, be grounded. [WP] Update: An earlier version of this post had the incorrect guilty plea.