Ocasio-Cortez, who at 29 became the youngest woman to be sworn into Congress, had the ideal millennial four-word response to the criticism: "New party, who dis?"
Former Senator and one-time Vice Presidential candidate Joe Lieberman has joined the list of once-relevant politicians who feel the need to take time out their day to tell the world they just don't get Alexandria Ocasio-Cortez.
"I'm sure Ms. Cortez means well, but there's nearly an outstanding rule: Don't attack your own people", said Rep. Emanuel Cleaver, D-Mo.
Her campaign failed to carry comp on its employees for a month, resulting in a fine by the state Workers' Compensation Board, according to several news reports.
Last week, a conservative activist released an old video of Ocasio-Cortez dancing in college, apparently in an homage to the '80s classic The Breakfast Club, in an effort to humiliate the newly-sworn-in Congresswoman.
Politico noted that Ocasio-Cortez's star power includes being better known by millions of Americans than longtime House Democrats, including Nancy Pelosi and John Lewis.
They both unseated a fellow Democrat and share Puerto Rican roots.
In other words, whether Lieberman likes it or not, it would seem that the future of the Democratic party is already here. "The honeymoon between the voters that you represent and yourself could be a short one".
"She's new here, feeling her way around", Rep. Kurt Schrader (D-OR) said. "My life, and just the campaign's life, changed overnight", she said during an interview. "The so-called champion of workers, when given her own responsibility, is not following the law".
Ocasio-Cortez is a self-proclaimed socialist democrat who has claimed higher taxes and wealth distribution are needed.