I gave Mitt Romney some donations for his campaign because he was a friend, and friendship came first. I've always been a Democrat, and I've had different views than Mitt Romney. I'm not Mitt Romney, and I think people will realize that when they meet me out there.

This quote means that the person has been a Democrat their whole life and does not share the same political views as Mitt Romney, but they decided to contribute to his presidential campaign because of the friendship between them. They are trying to make it clear that, even though they donated to Romney’s campaign, they are not like him and this will become apparent once people get to know them.