"...Maybe Obama could let the current bill pass and then add a whole pile of "signing statements" to rip out the bribes for the insurance companies and drug companies." ~ Richard Bridge (barrister)

Your knowledge of law does not extend to this side of "the pond".

A "signing statement" is usually an expression of the president's opinion of the bill. It has no power to change the bill.

If he likes it, he may say why. If he does not like it but is still willing to sign it, he may explain his reservations.

It also may be an attempt to explain how he, as chief executive, plans to implement the new law.