David Corn @DavidCornDC
Mark was a wonderful friend, journalist, and colleague. He cared so much about the world and revealing and righting wrongs. He was generous with his expertise, and I treasured his encouragement and the inspiration he provided me. He will be greatly missed. — PolitiTweet.org
Cal Perry @CalNBC
Our father, Mark Perry passed away early this morning. He was a historian, journalist, author and peacemaker — a hu… https://t.co/D789U6O6ZO