I thnk state's rights on those issues would be fine, except for partial birth abortion! Also, I don't think he would run on state's rights for those issues. I don't se him getting the nomination. Pro-lifers won't vote for him and pro-lifers are pretty-much the backbone of the republican vote.
States rights for abortion would hopefully take this issue out of national politics so we can vote for the best president for the war on terror.
Problems with the unborn will always be with us worldwide, and it's not a problem that will be solved by laws.