Tell you what: I'll take your questions seriously when they aren't based on a false premise.
You're trying to compare an appearance on a radio show to a long-term friendship and mentoring relationship.
Clearly there is no comparison. And, if there was, then you have to explain why you think you can taint McCain with Liddy and not, for example, Democrats (including Obama) with Imus.
Furthermore, you also have to explain why you haven't attacked
Al Franken, since he is, in fact, a good friend of Liddy's despite their political differences.