Presidential signing statements are written comments issued by the President when signing a bill into law. Signing statements can indicate support for the new legislation but alternatively can be used to indicate the President's disapproval of some aspect of the bill and/or the President's intentions with regards to how the legislation will be implemented by the executive branch. This is an example of an informal power of the President. Signing statements opposing legislation are controversial; some critics assert that they violate the President's Constitutional obligation to "faithfully execute the law," as provided in Article II, Section 3. The provided video clips pertain to bills for which Presidents Trump and Obama issued signing statements; the signing statements are provided in the Additional Resources section.