Monday, Oct. 5, is the last day to register to vote in the Nov. 3 city of Phoenix special City Council vacancy election and runoff election. In these elections, voters in City Council Districts 3 and 6 will elect City Council members. To be eligible, a person must be a registered voter and reside within City Council Districts 3 or 6 at least 29 days before the election. For more information, click here.