This is an interesting topic. I have my twenty year high school reunion coming up in three weeks, and I was emailing with a friend of mine from high school who was the working definition of a Liberal Democrat way back then. He is now a card carrying Republican. I would never have thought that possible, but people can and do change. 
As for me......
Guns- Then, pro gun control. Now, sitting on the fence, undecided. 
Capital Punishment- Then, against. Now, completely for capital punishment. Let'em fry!(yes, I would pull the switch)
Abortion- Then, Pro choice. Now, Pro life. Funny how having your own child can change one's perspective on the sanctity of life. 
God- Then, chronic doubter. Now, chronic doubter. Agnostic, I suppose. 
Taxes- Then, didn't care. Now, I see taxes as a neccessary evil, although I believe a balanced federal and state budget each year should be mandatory. 
Military- Then, we spend too much. Now, we spend enough, but are we spending it on the right things? 
Environment- Then, tree hugger/whale saver. Now, tree hugger/whale saver.  Death to Amreekan SUV's! 
Gay Rights- Then, equal rights for gays. Now, equal rights for gays. 
Drugs- Then, never tried them. Now, never tried them. Anti-drug, I guess. 
Immigration- Then, what? Now, no problem, we could use more Canadians in Minnesota. 
Education- Then, pro public education. Now, pro public education. 
Unions- Then, pro union. Now, pro union. 
Political party- Then, strong Democrat. Now, Independent.