Early voting begins Tuesday for the Nov. 4 primary election in which voters will cast ballots for U.S. senator and House members, plus a host of local offices. They also will decide on 14 amendments to the state constitution and many local ballot propositions.

Early voting will continue from 8:30 a.m. to 6 p.m. daily through Oct. 28, except for Sunday, at parish registrar of voters offices and, in some parishes, other designated sites.

Topping the ballot is the heated battle for U.S. senator among several candidates led by incumbent Democrat Mary Landrieu and Republican challengers Bill Cassidy and Rob Maness. Many observers expect that the race will require a Dec. 6 runoff.

Three congressional districts cover various parts of the seven-parish New Orleans metropolitan area. Incumbents Steve Scalise, a Republican, in the 1st District and Cedric Richmond, a Democrat, in the 2nd District are facing multiple challengers, and a large field is hoping to replace Cassidy in the 6th District. A runoff is likely there.

Voters in most of the metropolitan area will cast ballots for a seat on the state Public Service Commission. Incumbent Eric Skrmetta faces two challengers.

In Orleans Parish, the ballot also includes four Civil District Court judgeships, two Criminal District Court judgeships, a Juvenile Court judgeship, a special Law Enforcement District tax, two amendments to the city charter and renewals of six neighborhood improvements or security district fees.

In Jefferson Parish, the ballot includes three 24th Judicial District Court judgeships, a 1st Parish Court judgeship, eight School Board seats, two justices of the peace, six constables, a mayor and five City Council members in Harahan, a special tax in the Stonebridge subdivision, and tax renewals in Gretna for maintaining the sewer system and street lights.

St. Tammany Parish voters will vote for a district attorney, a 22nd Judicial District Court judge, a City Court judge in Slidell, two School Board members, six justices of the peace, six constables, mayors of Pearl River and Folsom, a police chief in Pearl River, five aldermen each in Abita Springs and Pearl River, three aldermen in Folsom, service charges in two road lighting districts, a sales tax renewal in Mandeville and four amendments to the Mandeville home rule charter.

The St. Bernard Parish ballot includes races for district attorney, two 34th Judicial District Court judgeships, two School Board members, four justices of the peace and five constables.

The St. Charles Parish ballot includes a 29th Judicial District Court judge, a School Board member, five justices of the peace and three constables.

In St. John the Baptist Parish, voters will cast ballots for district attorney, a 40th Judicial District Court judgeship, two School Board seats and two justices of the peace.

Plaquemines Parish voters will cast ballots for parish president, eight members of the Parish Council, four School Board members, three justices of the peace and four constables.

Orleans Parish voters can cast early ballots in Room 1W23 at City Hall, 1300 Perdido St.; Room 105 at the Algiers Courthouse, 225 Morgan St.; the Voting Machine Warehouse, 8870 Chef Menteur Highway; and on the second floor of the Lake Vista Community Center, 6500 Spanish Fort Blvd. The latter two sites may not be open every day; call (504) 658-8300 for details.

Jefferson Parish also has four early voting sites: Suite 502 at the Joseph Yenni Building, 1221 Elmwood Park Blvd., Harahan; Suite C-2 at the Charles Odom Building, 5001 West Bank Expressway, Marrero; 408 Minor St., Kenner; and the Grand Isle Community Center, 3211 La. 1. Call (504) 349-5690 for information on when the Grand Isle site will be open.

In St. Tammany Parish, voters can go to the St. Tammany Justice Center Parking Garage, 601 N. Jefferson Ave., Covington; the fourth floor of the Towers Building, 520 Old Spanish Trail, Slidell; and the parish Administrative Complex, 21454 Koop Drive, Mandeville. Call (985) 809-5500 for details on when the latter polling place will be open.

There is one early voting site in St. Bernard Parish, in Room 104 at the Government Building, 8201 W. Judge Perez Drive, Chalmette.

St. Charles Parish has two voting sites: Room 189 at the Parish Courthouse, 15045 River Road, Hahnville, and the Artebury Building, 14564 River Road, New Sarpy.

St. John the Baptist Parish voters may go to Room 112 at 1801 W. Airline Highway, LaPlace, or to 2393 La. 18 in Edgard.

Plaquemines Parish voters may cast ballots at Room 107, 28028 La. 23, Port Sulphur; the Belle Chasse Library, 8442 La. 23; and the Rev. Percy Cariffin Community Center, 5577 La. 39, Davant. The latter two sites are not open every day. Call (504) 934-3620 for information on their hours.

More information on candidates and voting procedures is available at the secretary of state’s website, www.geauxvote.com.