Then I definitely won't like him. Abortion used to be governed by the individual states, but the states were so descriminatory against certain groups of women (mostly poor and minorities), and those women were DYING because of it, so the federal government had to step in. I'd prefer not to have dead women in anti-abortion states.
As for marriage being the property of religion...I'm against that. Marriage has historically always been a legal agreement, not a religious one. Let the churches have civil unions and the gov't can keep marriages and make them legal for all consenting adults.