'Practice what you preach' is typically spoken as an indictment to a hypocrite, but give yourself some grace and "practice" what you believe. Every encounter you have is an opportunity to "practice" what you believe. Participate in relationships; and yes, even politics. Failing to experience all of life would be like loving only certain types of music. Sure, certain things 'feel' better, but true appreciation for diversity can only be seen from above.
By the measure you are open to God, the same is true with intimacy in your relationships, neighborhood and community. You can not connect with God and remain dis-connect-ed with your neighbor.
Your faith is not an excuse to dis-connect with community. You don't have to stoop to the human 'spin' tactics of political persuasion. Rise above the rhetoric and decide who you will vote. Then, create an atmosphere to allow others to do the same. Believe it or not, "you" matter; and "you" aren't wrestling with flesh and blood. You aren't wrestling with the electorate or the outcome of an election. If you are wrestling, you are wrestling with yourself, your ideas and dreams. The battle isn't for an outcome in an election, the way the world counts votes, but in "you" being free. The only mistake you can make is not to participate.
God didn't give you freedom, just to vote a party line or fall in Rankin file for someone else agenda. He raised you above the fray and sent you into the world to be light and salt. The only mistake you could make now is failing to allow yourself to participate.
Don't confuse being a Christ follower with not being a part of the community. While doing so, give others the same respect. Use this season as a time to 'practice' what you preach.