In this video, the topic of writ of mandamus complaint and 1447(b) complaints is discussed. If you have a petition which is delayed to an unreasonable extent, then a writ of mandamus complaint could be filed to compel USCIS to act on the case. Beware, however, because it only forces USCIS to make a decision, and not necessarily approve the case. So this action could backfire if used in an inappropriate situation. Furthermore, the topic of 1447(B) is covered, which relates to delays in naturalization applications filed where 120+ days have passed from the interview date. You have a right to petition the court to take action.