Mike Bloomberg’s presidential campaign plans to unleash its cash-flush media operation against Bernie Sanders in the wake of the Vermont senator’s resounding victory in the Nevada caucuses.

Senior aides to Bloomberg’s campaign have been discussing how they are going to use some of their resources against Sanders, according to people with direct knowledge of the matter who declined to be named because these decisions were made in private. Already, the campaign has spent over $500 million on media ad buys, according to Advertising Analytics.

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