1. Both the CEO and COO resigned in 2011.

2. He lobbied to release those conclusions publicly, without success, and resigned in February 2012.

3. Bridges, who joined the Secret Service in 2009, resigned from the Secret Service on March 18.

4. Americans have become resigned to the fact that the security of their data is beyond their control.

5. One top election official resigned last month over the allegations but denied wrongdoing.

6. The president of the university resigned last week during student protests.

7. The White House also seems resigned to a second term marked by congressional paralysis.

8. Three senior managers involved in the loan sales have either resigned or were fired.

9. She has resigned from her position at the airline.

10. He resigned as IMF chief before those charges were dropped.

11. Michelle is not a person who is resigned to waiting passively.

12. The committee said tax practitioners had resigned themselves to the current state of the portal.

13. His appeals for help went unanswered, and he resigned from the police force.

14. Four ministers have resigned in the aftermath of the corruption inquiries.

15. A third resigned rather than face a recall.