Problem Space: My mother holds an extremely polarized political view that I do not agree with.
My Specific Issue: My mother has recently gotten to the point where she literally personally blames Obama for everything. e.g. My sister works as a paralegal for the state, and she mentioned a recent influx of some 2,000+ cases to review, and had to spend 15 minutes to convince my mother that it wasn't Obama's fault.
The Question: I do not wish my daughter to be subjected to such blatantly polarized political views throughout her upbringing. We visit pretty often (they live about 3 - 3.5 hours away), and often stay with my family. However, my mother always finds it necessary to bring up controversial issues or make blatantly incorrect claims at inappropriate times. My daughter is my mother's first (and only) granddaughter, and she very much loves our visits, as she can spend a few hours with my daughter.
How do I deal with my mother's extreme political views and their effect on my daughter? I don't want my this exposure to lead my daughter to believing that this is an acceptable mindset.
Talking with my mother does not yield useful results, as it ends up with her making more outrageous claims, or blanket threats to all members of specific other religions. At that point, I just walk away from the conversation.
The only thing I can really hold over her to silence her is the threat of not visiting, and I'd REALLY hate to pull visitation like that (though it would save me a pretty penny on gas).
Update 1: My daughter is currently 1, but the issue will become increasingly critical as she continues to grow and develop
Update 2: Updated the "Problem Space: and "Question" sections to be more general. Details in the "Specific Issue" section remain, as they're directly relevant to my personal issue.
Update 3: Okay, so this has managed to draw a lot of attention and controversy, and some of the self-edited and suggested edits have prevented me from making the core of the issue clear:
I'm not the least bit concerned about shielding my daughter from politics, or even extreme views (it's always good to at least attempt to understand why someone believes what they do). When she's old enough to understand that different people have different views on things, I hope she'll be able to reason and make her own decisions, or at least ask me questions about it.
The issue is that my daughter is (or will be) extremely impressionable, and is beginning to mimic sounds that she hears, even now. Given that my 2.5-year-old nephew learned how to exclaim "Oh fuck!" when something fell off of the table within 3 hours of spending time with his other uncle, I know just how quickly kids can parrot undesirable sentiments.
It's a similar issue to swearing around kids, except blindly repeating swear words doesn't carry the same ideological implications as blindly repeating politically-charged, anti-religion, or racially denigrating sentiments.