I don't have political beliefs. I have facts.
I will correct someone if they are getting something wrong, regardless of affiliation. I've done this against both liberals and conservatives.
How they take it is the fun part. If they insist on defending the lie, I consider them idiots and never bother to discuss politics with them again. (some family members)
Most people get flustered when confronted with someone who actually know what they're preaching about. Those who can back up their opinion are rare, but it happens. Personally, I enjoy these discussions in real life.... and yes, I have changed my mind based on the debate; I have yet to find someone else who does though.
Not surprisingly, the only people who seem to openly lose their %$* when talking about politics have all been liberals. Conservatives seem to just shut up and look at me angrily.