Responding to questions about the Vermont senator's refusal to release medical records after suffering a heart attack in 2019, Gray claimed that Bloomberg "has suffered heart attacks in the past" and argued no one is concerned about his medical records.
"The Bloomberg 2020 campaign released more information about his outstanding health soon after he entered the race," Sheekey added.
"This isn't the way to defeat Donald Trump in November.
Sanders has accused the billionaire Bloomberg of trying to buy the election while claiming that he "will not create the kind of excitement and energy we need to defeat Donald Trump."
Bloomberg shot back, tweeting a video featuring aggressive and sometimes threatening tweets, texts and memes supposedly from Sanders supporters.