The news of Gwen Ifill's death devastated the PBS NewsHour newsroom, where she was a beloved leader and mentor to generations of journalists.
Gwen also hosted the long-running "Washington Week." On both programs, she pressed for the truth — a quality she brought to every story in her four-decade career in both print and television.
"I always appreciated Gwen's reporting, even when I was at the receiving end of one of her tough and thorough interviews," President Barack Obama told reporters today.
Throughout the day, journalists, politicians and NewsHour viewers offered their condolences and tributes on Twitter. We collected many of them below.
Share your thoughts and memories about Gwen Ifill here. We'll collect them to be shared with her family and friends.