Question: Which American screen writer won a Primetime Emmy Award for his work on "The West Wing", and also wrote "Sportsnight" and "The Newsroom"?
Context: Netflix is an American on-demand internet streaming media provider.  In 2013 Netflix became the first streaming platform to win a Primetime Emmy Award. " House of Cards" became the first original online-only web television series to receive major nominations for the 65th Primetime Emmy Awards.  "House of Cards" scored nine nominations, including Primetime Emmy Award for Outstanding Drama Series.  Meanwhile its first episode, "Chapter 1", received four nominations becoming the first webisode (online-only episode) of a television series to receive a major Primetime Emmy Award nomination.  Eigil Bryld won for Outstanding Cinematography for a Single-Camera Series, meanwhile David Fincher won for Outstanding Directing for a Drama Series.  Both, Bryld and Fincher won for the episode "Chapter 1", making it the first Emmy-awarded webisode.  The Following year "House of Cards" repeated in the category Outstanding Directing for a Drama Series, with Carl Franklin directing "Chapter 14".  Furthemore the political drama got its first nomination for writing for "Chapter 14", written by Beau Willimon. John Allen Amos Jr. (born December 27, 1939) is an American actor who is best known for his role as James Evans, Sr. on the CBS television series "Good Times" (1974–76).  Amos' other television work includes roles in "The Mary Tyler Moore Show", the miniseries "Roots", for which he received an Emmy nomination, and a recurring role as Admiral Percy Fitzwallace on "The West Wing".  Amos also played the father of Will Smith's character's girlfriend, Lisa Wilkes, in "The Fresh Prince of Bel-Air", and he had a recurring role on "In the House" with LL Cool J, as Coach Sam Wilson.  Amos played the Father of Tommy Strawn (Thomas Mikal Ford) on the long running sitcom, "Martin", as Sgt. Strawn, and another recurring role on "Two and a Half Men" as Chelsea's dad's new lover, Edward Boynton.  Amos also played Major Grant, the US Special forces officer in "Die Hard 2".  Amos has also appeared on Broadway and in numerous films in a career that spans four decades.  He has received nominations for a Primetime Emmy Award and NAACP Image Award. A Woman of Independent Means is an 1995 American television miniseries starring Sally Field.  Sally Field also producer.  Field was nominated for Emmy Award, Golden Globe Award and Screen Actors Guild Awards.  The series was also nominated in the category Primetime Emmy Award for Outstanding Miniseries and Primetime Emmy Award for Outstanding Casting for a Miniseries, Movie, or a Special and won Emmy for Outstanding Individual Achievement in Costume Design for a Miniseries or a Special in 1995. Aaron Benjamin Sorkin (born June 9, 1961) is an American screenwriter, director, producer and playwright.  His works include the Broadway plays "A Few Good Men" and "The Farnsworth Invention"; the television series "Sports Night", "The West Wing", "Studio 60 on the Sunset Strip" and "The Newsroom"; and the films "A Few Good Men", "The American President", "Charlie Wilson's War", "Moneyball" and "Steve Jobs".  For writing "The Social Network", he won the Oscar for Best Adapted Screenplay, among other awards.  He made his feature directorial debut in 2017 with "Molly's Game", which he also wrote. Allison Brooks Janney (born November 19, 1959) is an American actress.  A seven-time Primetime Emmy Award winner for her television work, her first four Emmy wins were for her role as C. J. Cregg on the NBC drama "The West Wing" (1999–2006).  In 2014, she won the Emmy for Outstanding Guest Actress in a Drama Series for her role as Margaret Scully on the Showtime series "Masters of Sex".  In 2014 and 2015, she won the Emmy for Outstanding Supporting Actress in a Comedy Series for her role as Bonnie Plunkett on the CBS sitcom "Mom". Bryan D. Andrews is an American storyboard artist and writer known for his work in science fiction and superhero films. Along with Genndy Tartakovsky and Paul Rudish, he co-created the animated television series "Sym-Bionic Titan", which premiered on Cartoon Network on September 17, 2010.  After 20 episodes, however, it was canceled due to lack of merchandise connected to the series, with the final episode airing April 9, 2011.  Andrews had worked with Tartakovsky on previous projects, including "Samurai Jack" and "".  He also worked with Tartakovsky as a storyboard artist on "Iron Man 2", contributing to the climactic final action sequence.  Andrews garnered two Primetime Emmy Award wins for his story work on "Star Wars: Clone Wars" in 2004 and 2005.  He received another Primetime Emmy and nomination for his work as a storyboard artist and writer on the fourth season of "Samurai Jack".  In 2006, Andrews received his second Primetime Emmy nomination as a writer for the "My Life as a Teenage Robot" special "Escape from Cluster Prime". Elisabeth Singleton Moss (born July 24, 1982) is an American film, stage, and television actor.  She is known for her roles as Zoey Bartlet, the youngest daughter of President Josiah Bartlet, on the NBC television series "The West Wing" (1999–2006); Peggy Olson, secretary-turned-copywriter, on the AMC series "Mad Men" (2007–2015), which earned her six Emmy Awards nominations and a Golden Globe nomination; Det. Robin Griffin in the BBC miniseries "Top of the Lake" (2013, 2017), which won her a Golden Globe for Best Actress in a Miniseries or TV Film; and Offred on the Hulu series "The Handmaid's Tale", for which she won the Primetime Emmy Award for Outstanding Lead Actress in a Drama Series and the Primetime Emmy Award for Outstanding Drama Series, as producer. Charles Noland is an American actor, appearing in over 100 different films and television episodes, including "Blow" and "Wayne's World".  He was a supporting character on the"The West Wing" for 7 Seasons.  While there, he received 2 "Honors for Contribution to the Drama, The West Wing" from the Primetime Emmy Awards.  He also had a supporting role on "ER" for 2 seasons.  He received 2 "Honors for Outstanding Performance by an Ensemble in a Drama Series" from the Screen Actors Guild. "In Excelsis Deo" is the tenth episode of the first season of "The West Wing".  It originally aired on NBC December 15, 1999, as the show's Christmas special.  Events circle around Toby getting involved in the fate of a dead Korean War veteran, reactions to a severe hate crime, and the ongoing controversy surrounding Leo's past alcohol and prescription drug abuse.  Written by Aaron Sorkin and Rick Cleveland and directed by Alex Graves, the episode contains guest appearances by Paul Austin and Raynor Scheine.  It also earned Sorkin and Cleveland the Primetime Emmy Award for Outstanding Writing for a Drama Series, as well as one for Richard Schiff. Phil Abraham is an American cinematographer and television director.  He worked on all six seasons of "The Sopranos", initially as a camera operator, then as a cinematographer and eventually as an episodic director.  He won the 2008 Primetime Emmy Award for Outstanding Cinematography for a One Hour Series for his work on the pilot of "Mad Men" and has been nominated for four other Primetime Emmy Awards for Outstanding Cinematography for a Single-Camera Series for his work on "The Sopranos".  Besides working as a cinematographer for "Mad Men", he has also worked as a director for fifteen episodes.  He picked up two more nominations for a Primetime Emmy Award for Outstanding Directing for a Drama Series for "Mad Men" episodes "The Jet Set" and "The Other Woman".  He attended high school at York Preparatory School and graduated from Wesleyan University, along with "Mad Men" creator Matthew Weiner.
Answer: Aaron Sorkin