Yes he has, and in spades.
A couple of years ago when Rush's radio show was in the doldrums before he reavealed he was deaf he went on a week-long tirade against Bush.
I am of the opinion that it was one of the attention-getting stunts he pulls during sweeps ratings week.
But whatever the reason, he was really vicious towards Bush and there were some knock-down-drag-out fights here on FR about it.
I must have been out of town. I completely missed it. Did he offer a reason for this attack, or did he just say that Bush is evil and leave it at that?