I'm a little annoyed at some remarks by parents who deem themselves "failures" because their children do not vote in line with them.
Be grateful that your children have minds of their own and are able to make decisions. You have provided them with the resources to form their own opinions and look at the world with discerning eyes.
Hopefully, this means they respectfully disagree with you and are able to articulate their reasons. Whether you vote Republican or Democrat, you do not get to decide how your children vote or what they believe. And if you do feel entitled to controlling your children's beliefs and actions, you are in the wrong line of work. Good parenting allows our children the freedom to grow up to be thinkers, achievers, and innovators. Be a good parent.
Respect your children's decisions because it doesn't change who they are.