Address voters' individual concerns with personalized messages automatically targeted to their needs. You have their contact details, so why not use that to your advantage. When it comes to engaging with those undecided, a little personal touch could be the deciding factor. Including a voter's name on an email or mentioning where they live is a great way to build loyalty and show you care about who they are. This can be done on several channels of communication, including email, SMS, voicemail, Twitter, and Facebook. Cover all your bases.