Sadly with social media more and more people tend to rely on the news they share or read there even though they might be wrong and could have been created consciously just to influence how the people may vote. 

I have also noticed that younger voters tend to copy what their parents vote, in despide of fully understand or not what they are doing.

Another thing that I would like to share is the increase in the numbers of fanatics around certain parties or candidates here in my country. It looks like a soccer match from time to time. So, people like this doesn't care about facts, they just wanna win no matter what. 

you have more options than just those. If you really want to let the conversation flow just try to change the subject, try to bring up a topic you are more confortable with.