Answer:
In modern day (if thats what you are asking) Abortion and Gun control. Democrats what guns more specifically automatic weapons banned and republicans believe they should be able to own any gun available to the public because of the second amendment. For abortion Democrats believe it should be the woman's choice (pro Choice) Republicans believe it doesn't matter what the woman thinks because they are taking a baby's life (pro Life)
Explanation: If you weren't talking about modern day let me know