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Fact check: Breaking down Adam Schiff's account of Trump's Ukraine call
By Daniel Dale
Hawaii Rep. Tulsi Gabbard changes course on impeachment inquiry
By Beatrice Peterson
Why Giuliani read his personal texts on Fox News, briefly explained
By Aaron Rupar
'I'm the real whistleblower': Giuliani's quixotic mission to help Trump in Ukraine
By Ben Schreckinger
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Ukraine agency says allegations against Burisma cover period before Biden joined
By Pavel Polityuk & Polina Ivanova
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
Sources: Special envoy to Ukraine resigns one day after whistleblower report released
By Devan Cole, Kylie Atwood & Evan Perez
Clinton's White House Faced Impeachment With Discipline. Trump's Approach Is Different. (Published 2019)
By Maggie Haberman & Annie Karni
White House Classified Computer System Is Used to Hold Transcripts of Sensitive Calls (Published 2019)
By Julian E. Barnes, Michael Crowley & Mark Mazzetti
The Trump-Ukraine whistleblower complaint, explained
By Andrew Prokop