More than 76 percent of Americans claim to be Christian and use the Bible as an instructional tool. For those of us in that category, the teachings of the Bible make up who we are and are clearly used to help guide our mental capacities in all routes of life, including voting. As far as Scripture and voting go, Romans 13:1 says, "Governments are ordained by God." Our job is to support them by voting, paying taxes and praying for our leaders, among other things.
Voting is a tangible thing a Christian can do to show love for his fellow man. And let us not forget the book of Mark which tells us "to render unto Ceasar that which is his." This does not just apply to taxes, it applies to government and our responsibilities to it. Just because the Bible does not give a direct commandment that says, "Thou shalt vote," does not mean that the Bible does not have anything to do with voting.