The secretary of state shall deliver the sealed envelope containing depositions, notices, and proofs of service, together with the statement of contestor, answer of contestee, and reply, to the presiding officer of the body in which the contest for senator or representative is to be tried, immediately upon the organization of the body or as soon thereafter as documents are received. The presiding officer, immediately upon receiving the documents, shall give notice to the body that the papers are in the officer's possession.