(1) A factual statement made in an argument advocating approval or rejection of a statewide ballot issue or in a rebuttal argument to either of those arguments must be supported by documents filed by the proponents or opponents with the secretary of state within 2 business days of the date on which the statements are required to be filed with the secretary of state.
(2) Nothing in this chapter relieves an author of any argument from civil or criminal responsibility for statements contained in an argument printed in the voter information pamphlet.