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Read what the inspector general said about the 'urgent' whistleblower concern
By Magan Crane & Lisa Desjardins
Intelligence Whistle-Blower Law, Explained
By Charlie Savage
Trump, Giuliani Press for Dirt on Biden Despite Ukraine Rebuff
By Daryna Krasnolutska & Stephanie Baker
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Trump pressured Ukraine's President to investigate Biden's son
By Zachary Cohen & David Shortell
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's communications with foreign leader are part of whistleblower complaint that spurred standoff between spy ...
By Ellen Nakashima, Shane Harris & Greg Miller
Trump urged Ukraine president eight times during call to investigate Joe Biden's son, report says
By Dan Mangan
Trump Repeatedly Pressed Ukraine President to Investigate Biden’s Son
By Alan Cullison, Rebecca Ballhaus & Dustin Volz
Whistleblower timeline: Team Trump contacts and Ukraine
By Paul LeBlanc, Kevin Liptak & Olanma Hazel Mang
Trump Pressed Ukraine's Leader on Inquiry Into Biden's Son (Published 2019)
By Maggie Haberman, Kenneth P. Vogel & Michael S. Schmidt
Trump pressed Ukrainian leader to investigate Biden's son, according to people familiar with the matter
By Carol D. Leonnig, Matt Zapotosky & Greg Miller
Whistleblower complaint about President Trump involves Ukraine, according to two people familiar with the matter
By Ellen Nakashima, Carol D. Leonnig & Shane Harris