While it's one thing to disagree with Newt on this, there isn't any legislation, proposed or otherwise, that this particular detail will make one iota of difference on in how he votes on that legislation.
If this primary season has taught us anything it's that front-runners come and go. So far we've had as front-runners, Trump, Romney, Bachmann, Cain, Perry and Gingrich (did I leave anyone out?).
There's still plenty of time for Gingrich himself to talk voters out of supporting him.