It took four years, but there’s a new “it” squad and it’s taking applications.

It had seemed that “squads,” as made infamous by Taylor Swift circa 2015, had gone the way of “on fleek” and “lit.” Not long after the term made the jump from hip-hop culture to a broader (whiter and older) audience, it had already overstayed its welcome. The once ubiquitous #squadgoals hashtags grew few and far between.

Fast forward to this week, when four progressive women lawmakers leaned into their nickname, “the squad,” to present a united front against President Trump.

“Our squad is big,” Representative Ayanna Pressley of Massachusetts said during a news conference on Monday with Representatives Alexandria Ocasio-Cortez of New York, Ilhan Omar of Minnesota and Rashida Tlaib of Michigan by her side. “Our squad includes any person committed to creating a more equitable and just world.”

Last night, at a rally in North Carolina, Mr. Trump described them as “hate-filled extremists who are constantly trying to tear our country down,” and invited them to leave the country.