American journalist, author, and former lawyer.
Also worth watching, at this important moment, this video from @JeremyScahill where he explains how the "whataboutism" cliché suppresses, by design, a vital examination of our own country's behavior to claim we support standards we refuse to abide by.
That said, it's worth reading the angry replies from DSA and adjacent activists to this above statement. Bernie was one of the most vocal Russiagaters -- whether out of political opportunism or conviction -- and that turned many young leftists into anti-Russia hawks.
I found this specific article of his more insightful, well-researched, informative, thought-provoking and critically minded than 90% - *at least* - of the articles published by the outlets in your bio. I therefore recommended it. Your Twitter clichés for him aren't relevant to me