If it is un-presidential to go on Leno's show, it is equally so to go on some radio actor's show.
Granted, but obviously it isn’t “unpresidential” for this nut to do whatever the hell he wants to do - you know like ignoring the constitution.
Both Bush 41 and 43, Cheney, and countless others have been on his show, its intelligent conversation.
To equate Leno with Rush is strait, well I'm looking for a decent word here, I'll just say imbecilic.