Click on the links below to view key source documents.

July 25th Call Transcript — Trump and Zelensky

The Whistleblower Complaint

The ICIG’s Accompanying Letter to the Complaint

The DOJ OLC Memorandum Opinion

The ICIG’s 9 September Letter to Schiff and Nunes

The ICIG’s 17 September Letter to Schiff and Nunes

The ICIG”s 30 September Statement Regarding “Hearsay”

October 3 Release of Text Messages From Kurt Volker’s Phone

October 3 Volker Opening Statement Before Congress

October 8 White House Letter of Non-Compliance

October 11 Opening Statement of Ambassador Marie Yovanovitch

Additionally, here is a link put up by CNN on October 14 containing links to the documents above, plus a few others.