Question: the American Society of Magazine Editors in association with Columbia University Graduate School of Journalism sponsors what award won by "Harper's Magazine" whose editor is Ellen Rosenbush?

Context paragraphs:
The Best American Magazine Writing 2007: The Best American Magazine Writing 2007 is a non-fiction book published by Columbia University Press, and edited by the American Society of Magazine Editors.  It features recognized high-quality journalism pieces from the previous year.  The book includes an account by journalist William Langewiesche of "Vanity Fair" about a controversial United States military operation in Iraq, an investigative journalism article for "Rolling Stone" by Janet Reitman, a piece published in "Esquire" by C.J. Chivers about the Beslan school hostage crisis, and an article by Christopher Hitchens about survivors of Agent Orange.

Columbia University Graduate School of Journalism: The Columbia University Graduate School of Journalism is the journalism school of Columbia University.  It is located in Pulitzer Hall on Columbia's Morningside Heights campus in New York City.

Alfred I. duPont–Columbia University Award: The Alfred I. duPont–Columbia University Award honors excellence in broadcast and digital journalism in the public service.  The awards, established in 1942 and administered since 1968 by the Columbia University Graduate School of Journalism in New York City, are considered by some to be the broadcast equivalent of the Pulitzer Prize, another program administered by Columbia University.

List of Columbia University alumni: This is a sorted list of notable persons who are alumni of Columbia University, New York City.  For further listing of notable Columbians see: Notable alumni at Columbia College of Columbia University; Columbia University School of General Studies; Barnard College; Columbia Law School; Columbia Business School; Columbia University Graduate School of Journalism; Columbia Graduate School of Architecture, Planning and Preservation; Columbia University College of Physicians and Surgeons; Columbia University Graduate School of Education (Teachers College); Fu Foundation School of Engineering and Applied Science; Columbia Graduate School of Arts and Sciences; Columbia University School of Professional Studies; Columbia University School of the Arts; and the School of International and Public Affairs.

List of Columbia University people: This is a partially sorted list of notable persons who have had ties to Columbia University.  For further listing of notable Columbians see: Notable alumni at Columbia College of Columbia University; Columbia University School of General Studies; Columbia Law School; Columbia Business School; Columbia University Graduate School of Journalism; Columbia Graduate School of Architecture, Planning and Preservation; Columbia University College of Physicians and Surgeons; Columbia University Graduate School of Education (Teachers College); Fu Foundation School of Engineering and Applied Science; Columbia Graduate School of Arts and Sciences; Columbia University School of Professional Studies; Columbia University School of the Arts; and the School of International and Public Affairs.  The following lists are incomplete.

Don Ringe: Don Ringe ( ; born c. 1946 – October 11, 2016) is an American political media consultant, Emmy Award winning journalist, documentary filmmaker and online innovator in both the US and overseas.  He is a graduate of the Columbia University Graduate School of Journalism (MS) and Hofstra University (BA).  He holds a Certificate in Advanced Advertising Studies from the University of Southern California Graduate School of Business.

Mario García (designer): Mario R. García (born February 15, 1947 in Placetas, Las Villas, Cuba) is an American newspaper and magazine designer and media consultant.  He is senior adviser on news design/adjunct professor at Columbia University, School of Journalism.  He was named the Hearst Digital Media Professional-in-Residence for 2013–14 at the Columbia University Graduate School of Journalism.

Ellen Rosenbush: Ellen Rosenbush has been editor of "Harper's Magazine" since 2010.  During her tenure the magazine won two National Magazine Awards and received a total of 12 nominations.

National Magazine Awards: The National Magazine Awards, also known as the Ellie Awards, honor print and digital publications that consistently demonstrate superior execution of editorial objectives, innovative techniques, noteworthy enterprise and imaginative design.  Originally limited to print magazines, the awards now recognize magazine-quality journalism published in any medium.  They are sponsored by the American Society of Magazine Editors in association with Columbia University Graduate School of Journalism and are administered by ASME in New York City, New York.  The awards have been presented annually since 1966.

Joe Cutbirth: Joe Cutbirth (born 1956) is an American scholar, journalist and media critic, and currently assistant professor of communications at Manhattan College.  He blogs about media and politics for The Huffington Post and was a recurring analyst for ABC News Now during the 2008 presidential primaries and general election.  He has taught at the Columbia University Graduate School of Journalism, New York University, the University of British Columbia Graduate School of Journalism and The New School.  Formerly he was a statehouse reporter and political writer for the "Fort Worth Star-Telegram" and served as the communications director for the Texas Democratic Party coordinated campaign during the Clinton-Gore 1996 and Ann Richards 1994 reelection efforts.

Supporting paragraphs: Ellen Rosenbush National Magazine Awards
Answer: National Magazine Awards