In this March 14, 2017 file photo, Sen. Kirsten Gillibrand, D-N.Y., participates in a Senate Armed Services Committee hearing on Capitol Hill in Washington. The New York senator used salty language Friday, June 9, 2017, to express her frustration with Washington politics. "If we are not helping people, we should go the f--- home," the Democrat declared in a speech to activists. (AP Photo/J. Scott Applewhite, File)

In this March 14, 2017 file photo, Sen. Kirsten Gillibrand, D-N.Y., participates in a Senate Armed Services Committee hearing on Capitol Hill in Washington. The New York senator used salty language Friday, June 9, 2017, to express her frustration with Washington politics. "If we are not helping people, we should go the f--- home," the Democrat declared in a speech to activists. (AP Photo/J. Scott Applewhite, File)

NEW YORK (AP) — New York Sen. Kirsten Gillibrand used salty language Friday to express her frustration with Washington politics.

“If we are not helping people, we should go the f--- home,” the Democrat declared in a speech to activists.

“And that should be our North Star,” she added. “That should be our framing principle of what we are doing in public service.”

It’s extraordinarily rare for members of Congress to swear in public, but it’s not the first time for Gillibrand. The 50-year-old New Yorker cursed several times in her 2014 book and used the f-word in a recent magazine interview.

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She faces re-election for her Senate seat next year. She’s also among several Democrats who could run for president in 2020.

Gillibrand’s fiery language Friday prompted cheers and applause from those gathered for the Personal Democracy Forum, a New York City conference of political activists and tech enthusiasts.

The mother of two young children also lashed out at Republican President Donald Trump for failing to follow through on promises to improve health care and the tax system for working families.

“Has he kept any of his promises?” she asked. “No. F--- no.”