I'll see if I can bring in some help.
MISSISSIPPI PING!!
Mississippi -- "The Governor shall, within 10 days after receiving official notice of such vacancy, issue his proclamation for an election to be held in the state to elect a Senator to fill such unexpired term as may remain, provided the unexpired term is more than 12 months... the election shall be held within 90 days from the time the proclamation is issued.... (If the vacancy occurs in) a year that there shall be held a general state or congressional election... the Governor's proclamation shall designate the general election day as the time for electing a Senator. ... The Governor may appoint a Senator to fill such vacancy temporarily, and if the United States Senate be in session at the time the vacancy occurs the Governor shall appoint a Senator within ten 10 days after receiving official notice thereof...(If the remaining time is less than a year, the appointee) shall serve for the full time of the unexpired term and no special election shall be called by the Governor but his successor shall be elected at the regular election."