Rep. Rashida Tlaib (D., Mich.) was recently pictured sporting a t-shirt that portrays the modern state of Israel as belonging entirely to Palestine.

Tlaib, one of Congress’s leading critics of Israel, was pictured in the t-shirt while promoting a recently published book by Linda Sarsour, another outspoken critic of the Jewish state who serves as a surrogate for the Bernie Sanders presidential campaign.

The shirt portrays present-day Israel as a Palestinian state. Shirts of this nature have been a mainstay of pro-Palestinian activists who reject a two-state solution and argue that the world’s only Jewish state should not exist.