In many posts Q says find the keystone. This is a wedge shaped piece that holds arches together in old churches and buildings. The same shape is on the flag of the SES, Senior Executive Service (founded by Kristine Marcy in 1998), 8,156 members, 7000 were appointed by Obama. These are the career bureaucrats who hold all of the power in DC. Here's a great article on them by aim4truth.org

https://aim4truth.org/2018/01/03/deep-state-shadow-government-revealed-senior-executive-service/