Pastor Aldo invited Pastor Kent Butterfield, First Reformed Presbyterian Church of Durham, NC (RPC) https://www.firstrpcdurham.org/, to discuss the mediatorial kingship of Christ. Discussing the topic in depth, there were a number of references to external supporting literature, here are links to some of them:

Founding Sins: How a Group of Antislavery Radicals Fought to Put Christ into the Constitution, Joseph S Moore, https://a.co/d/7EYhdOD

2020 Report of Synod's Special Committee on Christ's Mediatorial Kingship, http://reformed.com/wp-content/uploads/2021/01/2020-synod-report-special-committee-cmk-and-paper.pdf

Messiah the Prince Revisited, J.K. Wall, https://crownandcovenant.com/collections/christ-and-government/products/messiah-the-prince-revisited

Jesus is King (a pamphlet), RPCNA Synod Special Committee, https://crownandcovenant.com/products/jesus-is-king

Political Danger, J R Willson, https://crownandcovenant.com/products/political-danger

Find past episodes of Gospel on Tap and Kingdom Polemics at https://reformationmiami.org/kp.