No matter what you feel about the abortion debate there will not be many changes to the current abortion laws. Every four years we get into this debate because there is a thought that whoever we elect will either protect or destroy the current abortion laws of the land. Reality both parties use this hot button issue to steal your vote. Basically using your passion against you. Think about it George W. Bush was a strong pro-life advocate and with a Republican led House and Senate he never once mad any moves on the abortion law. The Supreme Court has not made any major changes in its position over the last 40 years despite conservative judges being added to the bench.
Roe v Wade
Same Sex Marriage
The same way George Bush with his GOP led congress never got that constitutional amendment banning gay marriage. Do not expect President Obama to propose one that will protect same sex marriage. Since you all as voters appear to care so much on both sides they will pretend to care but there will be no action done after November.