My editing interests are United States elections and political history, materials science, and the structured data that documents them.
Conflict-of-interest disclosure: I operate PolitiFinder, a free, nonpartisan database of U.S. elections including every president, U.S. senator, governor, and U.S. representative of the popular-vote era. I created and maintain the PolitiFinder Mix'n'Match catalog (catalog 8073). Because PolitiFinder is self-published and I have a conflict of interest, I don't add it to articles directly: I propose external links or corrections on the article's Talk page (using the edit-COI request process) for an uninvolved editor to review. On Wikidata I add PolitiFinder as a reference on facts it already documents. I welcome scrutiny of any such edit.