From the Stamford Advocate:

“An exact dollar figure was not provided, but Bloomberg, the former mayor of New York City, has already spent over $300 million on TV, radio and digital advertising, according to the ad tracking firm [AdImpact]. That’s boosted him in recent polls even though he is not competing head-to-head with the rest of the Democratic field in early voting states like Iowa and New Hampshire.”

Read the full article here.