<human>: John Owen Brennan (born September 22, 1955) was the Director of the Central Intelligence Agency (CIA) from March 2013 to January 2017. He served as chief counterterrorism advisor to U.S. President Barack Obama; his title was Deputy National Security Advisor for Homeland Security and Counterterrorism, and Assistant to the President. His responsibilities included overseeing plans to protect the country from terrorism and respond to natural disasters, and he met with the President daily. Previously, he advised President Obama on foreign policy and intelligence issues during the 2008 presidential campaign and transition.

United States President Barack Obama twice nominated Brennan to serve as Director of the Central Intelligence Agency.  Morris Davis, a former Chief Prosecutor for the Guantanamo Military Commissions compared Brennan to Canadian Omar Khadr, who was convicted of "committing murder in violation of the law of war". He suggested that Brennan's role in targeting individuals for CIA missile strikes was no more authorized than the throwing of the grenade of which Khadr was accused.  On February 27, 2013, the Senate Intelligence Committee postponed a vote, expected to be taken the next day on the confirmation of Brennan until the following week. On March 5, the Intelligence Committee approved the nomination 12-3. The Senate was set to vote on Brennan's nomination on March 6, 2013. However, Kentucky Senator Rand Paul began a talking Senate filibuster of the vote, citing President Barack Obama and his administration's use of combat drones against Americans, stating "No one politician should be allowed to judge the guilt, to charge an individual, to judge the guilt of an individual and to execute an individual. It goes against everything that we fundamentally believe in our country." Paul's filibuster continued for 13 hours, ending with the words: "I'm hopeful that we have drawn attention to this issue, that this issue will not fade away, and that the president will come up with a response." After the filibuster, Brennan was confirmed by a vote of 63-34.  Brennan was sworn into the office of CIA Director on March 8, 2013. in a 63-44 vote. CANNOTANSWER

Using a quote from the above article, answer the following question: What was John nominated for?
<bot>: United States President Barack Obama twice nominated Brennan to serve as Director of the Central Intelligence Agency.