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Read what the inspector general said about the ‘urgent’ whistleblower concern
By Magan Crane & Lisa Desjardins
Trump pressured Ukraine's President to investigate Biden's son
By Zachary Cohen & David Shortell
'Of course I did': Giuliani acknowledges asking Ukraine to investigate Biden
By Kyle Cheney
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Perspective | The U.S. has no rules for when the president is a national security threat
By Asha Rangappa
Trump, Giuliani Press for Dirt on Biden Despite Ukraine Rebuff
By Daryna Krasnolutska & Stephanie Baker
Trump: 'Nothing wrong' with Ukraine call sources say is focus of intel complaint
By Katherine Faulders, Alexander Mallin & John Santucci
Trump Whistleblower Saga Threatens to Blow Up 2020 Campaign
By Sam Stein, Sam Brodey & Asawin Suebsaeng
Trump urged Ukraine president eight times during call to investigate Joe Biden's son, report says
By Dan Mangan
Trump Pressed Ukraine's Leader on Inquiry Into Biden's Son (Published 2019)
By Julian E. Barnes, Kenneth P. Vogel & Maggie Haberman
Trump Repeatedly Pressed Ukraine President to Investigate Biden's Son - WSJ
By Alan Cullison, Rebecca Ballhaus & Dustin Volz
White House also involved in advising DNI not to share whistleblower complaint
By Evan Perez, Kevin Liptak & Manu Raju
Whistleblower timeline: Team Trump contacts and Ukraine
By Paul LeBlanc, Kevin Liptak & Olanma Hazel Mang
Behind the Whistle-Blower Case, a Long-Held Trump Grudge Toward Ukraine (Published 2019)
By Kenneth P. Vogel
Who is Ukranian president Volodymyr Zelensky?
By Siobhán O’Grady
Trump's communications with foreign leader are part of whistleblower complaint that spurred standoff between spy ...
By Ellen Nakashima, Shane Harris & Greg Miller
Whistleblower complaint about President Trump involves Ukraine, according to two people familiar with the matter
By Ellen Nakashima, Greg Miller & Carol D. Leonnig