Looks like we all have family members of the opposing party. Good for your grandpa---for being a Republican and voting against Clinton.
I went to a family reunion 7 years ago. They were the side of the family I rarely saw as a kid. They were all saying how evil the Republicans are. I felt very uneasy with them. My dad and his side of the family were all Republicans. Although raised a Democrat, my mom came to agree with my dad and even was a Republican election judge. She never talked politics much, so I was surprised at how Democrat her family actually was----up to the present time.