More Californians were registered to vote in Tuesday’s statewide special election than in last year’s presidential election, according to research published Tuesday by the Berkeley Institute of Governmental Studies .

The researchers found just over 23 million adults have registered to vote in the state’s special election. That was about 465,000 more than the 22.6 million who registered to vote a year ago in the presidential election, which typically draws higher voter interest. The percentage of eligible citizens registering to vote this year inched up to 84.6% from 84% a year ago, the researchers reported.

Voter registration has increased over the past decade since California began automatically registering motorists to vote when they applied for or renewed a driver license , the re

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