Answer:
A comment by the president attached to a vetoed bill giving recommendations to Congress
Step-by-step explanation:
The President of the United States can promote some of the political agendas by signing statements.
A signing statement when used in connections to the Congress can be --
When President after rejecting a bill passed by the Congress leaves a comment on the bill and recommends the Congress to change some of its nature of the bill by signing the bill and returning it to the Congress.
Thus the answer is ----
A comment by the president attached to a vetoed bill giving recommendations to Congress