Because of a years long habit of listening to Rush, although recently I have been very disappointed in his programs, and because I heard Drudge going hysterical Sunday night on his program, yesterday I decided to tune in to Rush to see if he was going to address the issue of this EPA report.
To answer your question, it seems to me that he has been fixated on Bush 'not doing enough, not using the bully pulpit, signing CFR, hugging Ted Kennedy, etc etc. The moment he said George W Gore is the last moment I will listen in the future.
And to answer your question: no, he has not been spending much time at all promoting Republican candidates, or judgeships or criticizing Democrats. Probably 80% Bash Bush and 20% Bash democrats - that is 80:20 of the 25% that is not devoted to golf, Marta conversations or outings with the rich and powerful.
I think there is something between him and the current administration that grates on him. He's not slept in the Lincoln bedroom like he did when X41 was in office as far as I know. I think he may feel somewhat slighted, JMO.