The certificate of the election of a senator or representative in Congress shall be signed by the governor, with the seal of the state affixed, and be countersigned by the secretary of state. [C51, §294; R60, §528; C73, §658; C97, §1166; C24, 27, 31, 35, 39, § 882; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §50.43 ]