Representative [e.g., Hakeem] Jeffries [(D-NY), House Minority Leader of the United States House of Representatives] : 

As a leading member of the House Democrats and of the House of Representatives altogether, you have an especial duty to draw up articles against Donald J. Trump for his high crimes and misdemeanors—including his abuse of the power of pardons and his revocation of the Congressionally-legislated Equal Employment Opportunity Act of 1965. Be assured in the coming days, you will see more of my fellow Americans petitioning for you and your colleagues in the House of Representatives to uphold and defend the Constitution by impeaching Donald J. Trump. Your constituents did not elect you to abuse the Constitution. I as a fellow American of you and your constituents did not vote in elections in [jurisdiction of residence] just to see all 57 states and territories of the American republic destroyed by an anti-republican autocrat. 

[Your name and, if applicable, title]
[Jurisdiction of residence—e.g., Congressional district in which you reside]