It’s been nine months since police brutalized protesters demonstrating against the war in Gaza outside the Washington headquarters of the Democratic National Committee. Now, as tens of thousands of protesters are set to march next week on the party’s national convention in Chicago, protesters attacked during the D.C. crackdown are suing the police.

Israeli forces have trained Metropolitan Police Department cops and Capitol Police, and the tactics police used against protesters in D.C. were not unlike the violence waged by Israeli forces against Palestinian-led protest movements, said Sumayya Saleh, senior attorney at the Civil Rights Corps.

The timing of the suit ahead of next week’s convention in Chicago is significant not just for its symbolism, said Sam Rise, a plaintiff who alleged they were pushed down the stairs during the protests. Almost a year after the fact, the call for a permanent ceasefire in Gaza has only grown stronger, they said, with hopes that Vice President Kamala Harris, the presumptive Democratic nominee, would listen.

“We have a red line, whether the Democratic Party has a red line or not,” Rise said. “Right now there are tens of thousands of uncommitted voters that Kamala Harris needs to win this election. And the issue for us on the table is a ceasefire and an arms embargo, and we’re not alone. The acceleration of this demand is only going to continue.”