Conversation so far:
What was John nominated for?
United States President Barack Obama twice nominated Brennan to serve as Director of the Central Intelligence Agency.
Was this a popular vote among others?
On March 5, the Intelligence Committee approved the nomination 12-3.

Question: What was his qualifications that made him eligible to be nominated?
Self-contained rewrite: What were John O. Brennan's qualifications that made him eligible to be nominated for CIA director?