the United States Court of Appeals for the Third Circuit ("the Circuit court") has interpreted the Fourth Amendment to United States Constitution so as to allow a police officer to search an arrestee's cellular telephone incident to arrest. the United States Supreme Court has affirmed the decision. Subsequent to this decision, a police officer in Texas searches an arrestee's cellular telephone incident to arrest. The arrestee challenges the search and files a claim in the United States District Court for the Western District of Texas. Explain whether the United States Supreme Court's decision is a mandatory authority or persuasive authority.