Helen Thomas kept US Presidents on their toes: Obama

US President Barack Obama has openly acknowledged what some of his predecessors have felt about Helen Thomas, the feisty front-row White House journalist, who kept them on their toes.

Pioneering journalist Helen Thomas dies at 92

Helen Thomas, a long-time White House correspondent and a pioneer for women in journalism, has died. She was 92.

Helen Thomas ends White House career amid uproar

Helen Thomas, the opinionated White House correspondent who used her seat in front row of history to grill 10 Presidents lost her storied perch Monday.