Provides that, if an incumbent officeholder who has filed for reelection later withdraws his or her candidacy, declarations of candidacy may be filed for that office until seventy-two hours after the close of business on the Monday following the last day for candidates to withdraw. If during that seventy-two hour period another incumbent officeholder chooses to file for the office being vacated, declarations of candidacy may be filed for that officeholder's own office for an additional seventy-two hours.