When your only principle is winning, you value nothing.
Then again, if you lose, your principles plus a dollar get you a cup of coffee. I'm not saying do ANYTHING to win, but the goal IS to win. It's hard to be an effective president if you lose. I think the word for it is priorities. The question McCain has to face is whether or not a pro-choice veep would lose him the election. He's promised pro-life policies, and has a record to back it, but I don't believe it's his highest priority, and I think it's obvious he's ok with having a pro-choice pick, if the voters will allow it. It's not a deal breaker for him. Perhaps it should be, but not out of principle. Out of necessity.
So you are implying that Regan valued nothing?
He chose a running mate who was not pro life... are you suggesting he valued nothing?
Stop spewing rhetoric and get real.