She made the announcement in an Instagram post featuring a photo of the dress she said she will wear to the ceremony. "Sneak peek: This is what I am wearing when I am sworn into Congress. #PalestinianThobe #ForMyYama," she wrote on Instagram.

Tlaib is the first Palestinian-American women ever elected to Congress. The Michigan lawmaker campaigned in favor of a two-state solution until just weeks before the midterm elections last month, when she backtracked from her support, and suggested to instead favor a one-state solution, with the Arab majority in control.

Earlier this month, she stirred controversy after announcing her support for the boycott, divestment and sanctions (BDS) movement– and suggested a planned delegation trip to the West Bank.

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She said she would refuse an annual trip to Israel hosted by the American Israel Public Affairs Committee (AIPAC) for freshman congressmen, and instead will organize a competing delegation to “occupied Palestine.”

“I want us to see that segregation has really harmed us, [especially in] being able to achieve real peace in the region,” Tlaib said in an interview with The Intercept. “I don’t think AIPAC provides a real, fair lens into this issue. It’s one-sided. [They] have these lavish trips to Israel, but they don’t show the side that I know is real, which is what’s happening to my grandmother and what’s happening to my family there.”

Democratic Representative-elect Rashida Tlaib announced on Saturday that she plans to wear a traditional Palestinian dress to her swearing-in ceremony next month at Congress.