Since December, David Sirota has, on Twitter, on his own website, and in columns in The Guardian, been trashing most of Sanders’s Democratic opponents—all without disclosing his work with Sanders—and has been pushing back on critics by saying that he was criticizing the other Democrats as a journalist. He centered many of his attacks on Beto O’Rourke, but he also bashed Kamala Harris, Cory Booker, Joe Biden, Kirsten Gillibrand, Michael Bennet, John Hickenlooper, Mike Bloomberg, and even Andrew Cuomo.
Sirota’s hiring as a senior adviser and speechwriter was announced by the Sanders campaign on Tuesday morning after The Atlantic contacted the campaign and inquired about the undisclosed role Sirota held while attacking other Democrats.
Faiz Shakir, Sanders’s campaign manager, confirmed in an interview on Tuesday afternoon that Sirota had been in an advisory role prior to his hiring on March 11. “He was advising beforehand,” Shakir said, explaining that Sirota’s informal work for Sanders goes back months, and was meant to be a trial period to see how the senator, who famously likes to write every word that he says himself, would work with a speechwriter.