You wish you would've "had a chance" to speak with your Dad about the election? This election period was eternally long. Whatever prevented you from having a chance to speak to your terminally ill Dad about the election in all that time?
Sounds to me like you'd better lay the blame where it belongs: the media and your lack of relating to your Dad.
Elections come and go, but your Dad is your Dad forever, even after he's gone. Better use this time to build a better relationship with him and forget about his vote for Obama. Your Dad's vote didn't make him president. But your anger at your Dad could affect you for a very long time.
Without going into all the gory details, there were other, more immediate issues on the table in our conversations - such as whether a family member had lived through another night, how the latest surgery went, options for long term care, legal issues. For the better part of this year, almost all of our conversations have centered around someone's health - mine, his, Mom's, Grandma's, etc.
So, yeah, Obama and his ilk took a back seat. Moreover, I never expected him to switch to a Democrat, particularly such a blatently liberal one. He's always been a Conservative; his vote for McCain, even a "hold your nose" vote for McCain, should have been a non-issue.
Hence, the surprise.
Fear not, though! He's refused to "claim me," too, but we usually get over it in about two weeks. He's a good and loving man.