Question: What daily political journal was Matthew Cooper the White House editor for?

Context paragraphs:
Red Flag (magazine): The Red Flag () was a theoretical political journal published by the Chinese Communist Party.  It was one of the "Two Newspapers and One Magazine"(两报一刊) during the 1960s and 1970s.  The newspapers were "People's Daily" and "Guangming Daily". " People's Liberation Army Daily" is also regarded as one of them.

Eric Schultz: Eric Schultz is a senior advisor to former President Barack Obama and is the founder of Schultz Group.  Schultz is a former White House Principal Deputy Press Secretary and special assistant to President Obama.  Recognized by "Politico" as the strategist “White House officials turn to in a crisis to handle communications,” Schultz was originally hired at the White House in 2011 to respond to Congressional oversight investigations.  After White House Deputy Press Secretary Josh Earnest replaced Jay Carney to become White House Press Secretary, Schultz was appointed White House Deputy Press Secretary.  In this role, Schultz often diffuses "tensions with humor.  But he can be relentless in pushing his message in both public and private conversations.”  Former White House Communications Director Jen Psaki compared Schultz to fictional crisis manager Olivia Pope, "he's the person you want next to you in a foxhole when there's a crisis."  At the end of President Obama's second term, former White House Senior Advisor Valerie Jarrett said of Schultz, “We’ve all grown to rely on his wise counsel" and that the President "trusts his sound judgement."

Matthew Cooper (American journalist): Matthew Cooper (born 1963) is the political editor at "Newsweek".  Before that he was the managing editor for White House coverage at "National Journal" magazine.  Cooper is a former reporter for "Time" who, along with "New York Times" reporter Judith Miller was held in contempt of court and threatened with imprisonment for refusing to testify before the Grand Jury regarding the Valerie Plame CIA leak investigation.  He was a blogger for "Talking Points Memo" in early 2009, and contributed to the magazine "Condé Nast Portfolio" until it closed in April, 2009, after which he became a correspondent for "The Atlantic" magazine.  He worked for the Financial Crisis Inquiry Commission on a book about the group's findings from the economic collapse in 2010.

Bob Cesca: Bob Cesca (born July 12, 1971) is an American director, producer, writer, actor, blogger and political commentator.  He is the Managing Editor of "The Daily Banter", a news and opinion site founded by Ben Cohen, where he also writes a daily political column.  He's also a regular contributor for "Salon.com".

East Wing: The East Wing is a part of the White House Complex.  It is a two-story structure east of the White House Executive Residence, the home of the President of the United States.  While the West Wing generally serves the president's executive office staff, the East Wing serves as office space for the First Lady and her staff, including the White House Social Secretary, White House Graphics and Calligraphy Office and correspondence staff.  The East Wing also includes the visitors' entrance, and the East Colonnade, a corridor connecting the body of the East Wing to the residence.  Along the corridor is also the White House theater, also called the Family theater.  Social visitors to the White House usually enter through the East Wing.

The Hotline: The Hotline is a daily political briefing published, alongside "National Journal", by Atlantic Media from its headquarters at The Watergate complex in Washington, D.C..  It is currently edited by Scott Bland.  "The Hotline" was founded by Doug Bailey and Roger Craver in 1987, and published independently until its acquisition in 1996 by National Journal Group, now a subsidiary of Atlantic Media.

Bácskai Napló: Bácskai Napló (lit. " Bačka Journal") was a Hungarian language daily political newspaper.  The first issue of "Bácskai Napló" was published on 16 June 1907, with the purpose of serving as the information source for the Magyars and Hungarian language-speaking population in Bács-Bodrog County within the Kingdom of Hungary in Austria-Hungary.  It was published in Subotica, today in Serbia.  "Bácskai Napló" was the organ of National Association of Christian Socialists of Bács-Bodrog County.  "Bácskai Napló" survived the World War I and was also published in the Kingdom of Serbs, Croats and Slovenes.  From 1917 to 1919, it was published under the name "Délvidék".  This newspaper was banned in the beginning of 1920, but reappeared in the summer of the same year.  Its editors-in-chief were Gyula Veréb, Lajos Kónya, János Völgyi, Gyula Tóth and Kálmán Balás-Piri.  "Bácsmegyei Napló" ceased publication in 1923.

National Journal: National Journal is a research and advisory services company based in Washington, D.C. offering services in government affairs, advocacy communications and policy brands research for government and business leaders.  It publishes daily journalism covering politics and public policy and is led by President Kevin Turpin and Editor-in-Chief Stephen G. Smith.

Dalton Delan: Dalton Delan (born August 5, 1954) is an American writer, editor, and television producer.  His works with WETA, PBS and Sundance have won him numerous awards for his documentaries and primetime shows.  A number of his projects include working alongside Robert Redford.  He is executive producer of In Performance at the White House; bringing Bob Dylan in 2010, and Paul McCartney to the White House in 2011, with Mick Jagger performing in 2012.  So far, Delan has worked with presidents Barack Obama, George W. Bush and Bill Clinton in making the In Performance at the White House possible.  Delan is also an executive producer of the Mark Twain Prize for American Humor, presented by the Kennedy Center to notable names in humor and comedy.  Delan is also Co-Creator and an Executive Producer of the Library of Congress Gershwin Prize for Popular Music, whose first recipient was Paul Simon, in a ceremony at the Warner Theater.  He then arranged the relocation of the ceremony to the White House as part of the In Performance at the White House series on PBS, with subsequent honorees Stevie Wonder, Paul McCartney, Burt Bacharach and Hal David, and Carole King in 2013.

Joe Conason: Joe Conason (born January 25, 1954) is an American journalist, author and liberal political commentator.  He is the founder and editor-in-chief of "The National Memo", a daily political newsletter and website that features breaking news as well as commentary and analysis from influential progressive thinkers.  Since 2006, he has served as editor of The Investigative Fund, a nonprofit journalism center.

Supporting paragraphs: Matthew Cooper (American journalist) National Journal
Answer: National Journal