Today is the last day to register to vote in the statewide special election on Nov. 4, when voters can consider Proposition 50, a Congressional redistricting measure.

Voters can register online through the Alameda County Registrar of Voters or the California Secretary of State’s website .

Those who are registered can cast their votes early in person starting on Oct. 25 at select polling locations or show up to vote on Election Day, Nov. 4. People choosing to vote by mail must postmark their ballots or deliver them to an election drop box by Nov. 4. The Alameda County Registrar of Voters also has a map of voting centers .

Prop 50, backed by Gov. Gavin Newsom, authorizes the California state legislature to temporarily change the state’s Congressional district maps in response to

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