The National Park Service granted a permit allowing a conservative organization, Women for America First, to host a gathering in Freedom Plaza in Washington, D.C., on December 12, with a projected attendance of upwards of 5,000 people.[80] On the day of the event, about 200 members of the Proud Boys joined a march near the Plaza and the Trump International Hotel while dressed in combat fatigues and ballistic vests, carrying helmets, and reportedly using hand signals used by white nationalists. Reported antifa adherents were also at the march to counterprotest, and both groups engaged in fights with one another later that night.[81] In scuffles between protesters and counterprotesters, four people were stabbed and at least 23 were arrested.[82] Trump acknowledged the Washington protest, tweeting "Wow!