Conversation so far:
how many candidates were considered for the position of Surgeon General by President Barack Obama
How come Sanjay Gupta didn't get the role of Surgeon General of the United States?
In March 2009 Sanjay Gupta withdrew his name from consideration for the post, citing his family and his career.

Question: how long did he work for cnn?
Self-contained rewrite: How long did Sanjay Gupta work for CNN?