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Fact check: Breaking down Adam Schiff's account of Trump's Ukraine call
By Daniel Dale
Why Giuliani read his personal texts on Fox News, briefly explained
By Aaron Rupar
White House Classified Computer System Is Used to Hold Transcripts of Sensitive Calls (Published 2019)
By Julian E. Barnes, Michael Crowley & Mark Mazzetti
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Ukraine agency says allegations against Burisma cover period before Biden joined
By Polina Ivanova & Pavel Polityuk
Whistleblower complaint: U.S. special envoy to Ukraine steps down a day after whistleblower complaint was released
By Christina Ruffini
Trump-Ukraine whistleblower is a CIA employee who was detailed to the White House
By Kevin Breuninger
Giuliani Sits at the Center of the Ukraine Controversy
By Alan Cullison, Rebecca Ballhaus & Georgi Kantchev
There are still 12 House Democrats who don't support impeachment proceedings. Why?
By Christopher Michael Cillizza
Sources: Special envoy to Ukraine resigns one day after whistleblower report released
By Devan Cole, Kylie Atwood & Evan Perez
'I'm the real whistleblower': Giuliani's quixotic mission to help Trump in Ukraine
By Ben Schreckinger
House panels subpoena Secretary of State Pompeo for documents related to Trump impeachment probe
By Jacob Pramuk
Clinton's White House Faced Impeachment With Discipline. Trump's Approach Is Different. (Published 2019)
By Maggie Haberman & Annie Karni
The Trump-Ukraine whistleblower complaint, explained
By Andrew Prokop