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Perspective | Trump can launch nuclear weapons whenever he wants, with or without Mattis
By Jon Wolfsthal & Bruce G. Blair
Brett McGurk, top U.S. envoy in ISIS fight, resigns
By Margaret Brennan
Why Mattis Had to Go - POLITICO Magazine
By Blake Hounshell
US envoy in ISIS fight, Brett McGurk, resigns over US withdrawal from Syria
By Veronica Stracqualursi & Elise Labott
You Can't Serve Both Trump and America
By Elliot Cohen
James Mattis resigns as defense secretary
By Alex Ward & Jen Kirby
Defense Secretary Mattis' resignation letter is a must-read warning about the future
By Frederick Kempe
Mattis quits, says his views aren't 'aligned' with Trump's
By Zachary Cohen, Barbara Starr & Jeremy Diamond
Trump to oust Mattis two months early, announces new acting secretary of defense
By Barbara Starr, Kaitlan Collins & Elise Labott
Jim Mattis' resignation letter is an absolutely stunning rejection of Trumpism
By Christopher Michael Cillizza
Defense Secretary Jim Mattis resigns, scolding Trump over military judgment
By David K. Li, Mosheh M. Gains & Frank Thorp V
All the ways Mattis tried to contain Trump
By Wesley Morgan
Mattis breaks with Trump in resignation letter
By Connor O'Brien & Bryan Bender
US Defence Secretary James Mattis announces resignation
By Anthony Zurcher
Defense Secretary James Mattis is quitting because he doesn't agree with Trump
By Kevin Breuninger & Amanda Macias
Read James Mattis' resignation letter to Trump: 'We must be resolute and unambiguous' toward Russia and China
By Kevin Breuninger
Jim Mattis, Defense Secretary, Resigns in Rebuke of Trump's Worldview (Published 2018)
By Helene Cooper
Mattis resigns after clash with Trump over troop withdrawal from Syria and Afghanistan
By Missy Ryan, Paul Sonne & Josh Dawsey
Trump forces Mattis out two months early, names Shanahan acting defense secretary
By Josh Dawsey, Philip Rucker & Dan Lamothe