A vocal Bernie Sanders supporter. A Chicagoan with zero followers on Twitter. A dozen registered Republicans. These are some of the digital soldiers Michael R. Bloomberg’s presidential campaign has recruited in California to boost the former New York mayor’s online profile in preparation for the March 3 Democratic primary.

The Bloomberg 2020 operation is hiring more than 500 people at a rate of $2,500 a month to text friends and post on social media in support of the former New York mayor and billionaire media mogul. These “deputy field organizers,” as the campaign calls them, are focusing their efforts on California and its 415 delegates up for grabs. It has not been picky in choosing messengers.