RM: Did you, in your youth, advise a young friend to date men of her own ethnicity?
CC: Were you on SNL waaaaaaaaay back in the day?
No, I’m not Chevy Chase.
<repeating an unanswered question>
No. To recap:
I AM: male, living, and in politics
I AM NOT: an entertainer, a Republican, or from the United States
Zeldar: No, I’m not Ray Milland.
SurrenderDorothy: I can’t say for certain that I did or didn’t, but I can’t think of the famous person you have in mind, so ask a DQ at your pleasure.
Taber: I’ll start guessing your CC once my identity is deduced.
RM
IQ: Did you play in the movies the same guy that Stacy Keach did?
No, I’m not Ralph Meeker.
RM:
Does 61* mean anything to you?
No, I’m not Roger Maris.
RM:
IQ: Did they have to put something in your mouth to keep you from biting off your tongue?
No, and I don’t know who you mean. Feel free to add to the DQ blizzard.
At last! Randle McMurphy (Jack Nicholson) in One Flew Over The Cuckoo’s Nest
DQ: Are you currently in office?
Yes.
I AM: male, living, and in politics – indeed, in office
I AM NOT: an entertainer, a Republican, or from the United States
RM
IQ: Are you the head of state of Turkmenistan?
cool
No, and as far I know, his initials are not RM. If you can prove differently, give me a cite and a DQ.
This Wikipedia article shows Rashid Meredov of Turkmenistan as foreign minister. I’ll defer to your definition of “head of state” before claiming a DQ.
IQ: Did you ever have a guitar battle with Steve Vai?
RM
IQ: Are you president of Zimbabwe?
Well, foreign minister is equivalent to Secretary of State – both serve under the head of state or head of government. Had you said “high government official”, I’d accept a DQ, but I think it’s only fair to take Rashid Meredov off the table for the remainder of this round.
On preview, however, I see you’ve guessed my identity – yes, I am President Robert Mugabe of Zimbabwe. So Surrender Dorothy’s question about dating people of one’s own ethnicity did lead me to wonder if she knew something specific about me that I may not be able to recall at the moment. 
So, should we all hop on the CC that’s already in progress?
Shame about the wasted Steve Vai question, though!