This is from an online dating site using a data set of over 100,000 people. It's fairly detailed and accurate and rather good news for conservatives, especially when you remember that enormous and aging Baby Boomer population.
The Democrats Are Doomed, or How A ‘Big Tent’ Can Be Too Big
A detail I liked and respected is the author of this piece considers this information "bad" news and yet reported it clearly and honestly. Kudos!