A fuller and more complicated picture emerged on Sunday of the videotaped encounter between a Native American man and a throng of high school boys wearing “Make America Great Again” gear outside the Lincoln Memorial in Washington.

Interviews and additional video footage suggest that an explosive convergence of race, religion and ideological beliefs — against a national backdrop of political tension — set the stage for the viral moment. Early video excerpts from the encounter obscured the larger context, inflaming outrage.

Leading up to the encounter on Friday, a rally for Native Americans and other Indigenous people was wrapping up. Dozens of students from Covington Catholic High School in Kentucky, who had been in Washington for the anti-abortion March for Life rally, were standing on the steps of the Lincoln Memorial, many of them white and wearing apparel bearing the slogan of President Trump.

There were also black men who identified themselves as Hebrew Israelites, preaching their beliefs and shouting racially combative comments at the Native Americans and the students, according to witnesses and video on social media.