In the United States, as a general rule, courts do not have self-executing powers. In other words, in order for the court to rule on a contested issue in a case before it, one of the parties or a third party must raise an appropriate motion asking for a particular order. Some motions may be made in the form of an oral request in open court, which is then either summarily granted or denied orally by the court. Today, however, most motions (especially on important or dispositive issues that could decide the entire case) are decided after oral argument preceded by the filing and service of legal papers. That is, the movant is usually required to serve advance written notice along with some kind of written legal argument justifying the motion. The legal argument may come in the form of a memorandum of points and authorities supported by affidavits or declarations. Some northeastern U.S. states have a tradition in which the legal argument comes in the form of an affidavit from the attorney, speaking personally as himself on behalf of his client. In contrast, in most U.S. states, the memorandum is written impersonally or as if the client were speaking directly to the court, and the attorney reserves declarations of his own personal knowledge to a separate declaration or affidavit (which are then cited to in the memorandum). One U.S. state, Missouri, uses the term "suggestions" for the memorandum of points and authorities.