Al Franken the Originalist?

I woke up from dozing in my living room chair just long enough to catch Al Franken on the Tonight Show with Jay Leno last night. When Leno asked his thoughts about Supreme Court Justice nominee Samuel Alito, Franken replied that he has some "scary" ideas like that of a woman having to inform her husband before having an abortion. He also said that Alito believes in "the right to bear machine guns," adding that he doubts the framers of the Constitution ever envisioned anything like that. I wonder what he thinks they envisioned about a mother having the state-protected right to kill her unborn child.