A Secret Service agent is for the first time publicly speaking out against the agency’s diversity, equity, and inclusion policies, which he says contributed to the first assassination attempt against President Trump last summer.

Surveillance video released by Chicago Public Schools officials in response to a Freedom of Information Act request shows the agents were at the school for about 30 minutes.

The U.S. Secret Service says its agents visited a Chicago elementary school while investigating a threat. School officials mistakenly said hours before that U.S.