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You're trying to compare an appearance on a radio show to a long-term friendship and mentoring relationship.
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"I'm proud of you, I'm proud of your family.... It's always a pleasure for me to come on your program, Gordon, and congratulations on your continued success and adherence to the principles and philosophies that keep our nation great."
In McCain's defense I'm sure he wasn't thinking about all the plots to kill, kidnap & firebomb Liddy wrote about in his bio.