A Joe Biden-boosting social media influencer known as “Brooklyn Dad Defiant” came under fire Wednesday for reportedly failing to disclose that he accepted tens of thousands of dollars from a Democratic political action committee. Majid Padellan, who runs the nearly 900,000-follower-strong Twitter account — and has been slammed previously for urging Bernie Sanders to drop out of the 2020 presidential race — allegedly accepted more than $57,000 from a pro-Biden PAC, Really American, last year, according to Refinery29.com, which cited tweets circulating Tuesday. In his Twitter bio, Padellan says he’s a senior adviser to the PAC — but followers slammed...