Why stop there?
There have been quite a few attempts to put a Constitutional amendment into motion, regarding the natural-born citizen requirement.
Orrin Hatch (R-UT) is one. Don Nickles (R-OK) was another. Who are the rest, and are they still in office?
This is as good a place as any, to start calling them all out.
Michigan Governor Jennifer Granholm, who was born in Canada, also supports this amendment. She explained: You can't choose where you are born, but you can choose where you live and where you swear your allegiance.
...
My proposal is already garnering bipartisan support. Several senators have publicly expressed support for a constitutional amendment in statements made to the media over the last several months. In addition, we are fortunate to have with us today, a panel of six distinguished members of Congress to discuss various proposals in the Senate and the House that would maximize voter choice for the Presidency. I look forward to hearing from them and from our academic experts on Panel 2.
http://judiciary.senate.gov/hearings/testimony.cfm?id=1326&wit_id=51