blue-slipping

If the Senate initiates appropriations legislation, the House practice is to return it to the Senate with a blue piece of paper attached citing a constitutional infringement since all measures are supposed to originate in the House. The practice of returning such bills and amendments to the Senate without action is known as “blue-slipping.”

C-SPAN: “Without House action, Senate-initiated spending legislation cannot make it into law. So in practice, the Senate rarely attempts to initiate such bills anymore, and if it does, the House is diligent about returning them. Regardless of one’s opinion of the correct interpretation of the Constitutional provision, the House refusal to consider such Senate legislation settles the matter in practice.”